diff --git a/CHANGELOG.md b/CHANGELOG.md
index 65ace6a..7efcbe7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+#### Added
+- Keybinding: Press `o` to open the current answer in the default browser
+
 ## [0.4.7]
 
 #### Added
diff --git a/Cargo.lock b/Cargo.lock
index 3fd6520..9c1792f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -14,7 +14,7 @@ version = "0.7.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "fcb51a0695d8f838b1ee009b3fbf66bda078cd64590202a864a8f3e8c4315c47"
 dependencies = [
- "getrandom 0.2.5",
+ "getrandom 0.2.7",
  "once_cell",
  "version_check",
 ]
@@ -30,9 +30,9 @@ dependencies = [
 
 [[package]]
 name = "async-compression"
-version = "0.3.12"
+version = "0.3.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f2bf394cfbbe876f0ac67b13b6ca819f9c9f2fb9ec67223cceb1555fbab1c31a"
+checksum = "345fd392ab01f746c717b1357165b76f0b67a60192007b234058c9045fdcf695"
 dependencies = [
  "flate2",
  "futures-core",
@@ -84,9 +84,9 @@ dependencies = [
 
 [[package]]
 name = "bumpalo"
-version = "3.9.1"
+version = "3.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a4a45a46ab1f2412e53d3a0ade76ffad2025804294569aae387231a0cd6e0899"
+checksum = "c1ad822118d20d2c234f427000d5acc36eabe1e29a348c89b63dd60b13f28e5d"
 
 [[package]]
 name = "byteorder"
@@ -96,9 +96,9 @@ checksum = "14c189c53d098945499cdfa7ecc63567cf3886b3332b312a5b4585d8d3a6a610"
 
 [[package]]
 name = "bytes"
-version = "1.1.0"
+version = "1.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c4872d67bab6358e59559027aa3b9157c53d9358c51423c17554809a8858e0f8"
+checksum = "ec8a7b6a70fde80372154c65702f00a0f56f3e1c36abbc6c440484be248856db"
 
 [[package]]
 name = "cast"
@@ -109,12 +109,24 @@ dependencies = [
  "rustc_version",
 ]
 
+[[package]]
+name = "cast"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "37b2a672a2cb129a2e41c10b1224bb368f9f37a2b16b612598138befd7b37eb5"
+
 [[package]]
 name = "cc"
 version = "1.0.73"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2fff2a6927b3bb87f9595d67196a70493f627687a71d87a0d692242c33f58c11"
 
+[[package]]
+name = "cesu8"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6d43a04d8753f35258c91f8ec639f792891f748a1edbd759cf1dcea3382ad83c"
+
 [[package]]
 name = "cfg-if"
 version = "0.1.10"
@@ -142,6 +154,16 @@ dependencies = [
  "vec_map",
 ]
 
+[[package]]
+name = "combine"
+version = "4.6.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "35ed6e9d84f0b51a7f52daf1c7d71dd136fd7a3f41a8462b8cdb8c78d920fad4"
+dependencies = [
+ "bytes",
+ "memchr",
+]
+
 [[package]]
 name = "convert_case"
 version = "0.4.0"
@@ -180,7 +202,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ab327ed7354547cc2ef43cbe20ef68b988e70b4b593cbd66a2a61733123a3d23"
 dependencies = [
  "atty",
- "cast",
+ "cast 0.2.7",
  "clap",
  "criterion-plot",
  "csv",
@@ -201,19 +223,19 @@ dependencies = [
 
 [[package]]
 name = "criterion-plot"
-version = "0.4.4"
+version = "0.4.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d00996de9f2f7559f7f4dc286073197f83e92256a59ed395f9aac01fe717da57"
+checksum = "2673cc8207403546f45f5fd319a974b1e6983ad1a3ee7e6041650013be041876"
 dependencies = [
- "cast",
+ "cast 0.3.0",
  "itertools",
 ]
 
 [[package]]
 name = "crossbeam"
-version = "0.8.1"
+version = "0.8.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4ae5588f6b3c3cb05239e90bd110f257254aecd01e4635400391aeae07497845"
+checksum = "2801af0d36612ae591caa9568261fddce32ce6e08a7275ea334a06a4ad021a2c"
 dependencies = [
  "cfg-if 1.0.0",
  "crossbeam-channel",
@@ -225,9 +247,9 @@ dependencies = [
 
 [[package]]
 name = "crossbeam-channel"
-version = "0.5.2"
+version = "0.5.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e54ea8bc3fb1ee042f5aace6e3c6e025d3874866da222930f70ce62aceba0bfa"
+checksum = "c2dd04ddaf88237dc3b8d8f9a3c1004b506b54b3313403944054d23c0870c521"
 dependencies = [
  "cfg-if 1.0.0",
  "crossbeam-utils",
@@ -235,9 +257,9 @@ dependencies = [
 
 [[package]]
 name = "crossbeam-deque"
-version = "0.8.1"
+version = "0.8.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6455c0ca19f0d2fbf751b908d5c55c1f5cbc65e03c4225427254b46890bdde1e"
+checksum = "715e8152b692bba2d374b53d4875445368fdf21a94751410af607a5ac677d1fc"
 dependencies = [
  "cfg-if 1.0.0",
  "crossbeam-epoch",
@@ -246,22 +268,23 @@ dependencies = [
 
 [[package]]
 name = "crossbeam-epoch"
-version = "0.9.7"
+version = "0.9.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c00d6d2ea26e8b151d99093005cb442fb9a37aeaca582a03ec70946f49ab5ed9"
+checksum = "045ebe27666471bb549370b4b0b3e51b07f56325befa4284db65fc89c02511b1"
 dependencies = [
+ "autocfg",
  "cfg-if 1.0.0",
  "crossbeam-utils",
- "lazy_static",
  "memoffset",
+ "once_cell",
  "scopeguard",
 ]
 
 [[package]]
 name = "crossbeam-queue"
-version = "0.3.4"
+version = "0.3.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4dd435b205a4842da59efd07628f921c096bc1cc0a156835b4fa0bcb9a19bcce"
+checksum = "1cd42583b04998a5363558e5f9291ee5a5ff6b49944332103f251e7479a82aa7"
 dependencies = [
  "cfg-if 1.0.0",
  "crossbeam-utils",
@@ -269,12 +292,12 @@ dependencies = [
 
 [[package]]
 name = "crossbeam-utils"
-version = "0.8.7"
+version = "0.8.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b5e5bed1f1c269533fa816a0a5492b3545209a205ca1a54842be180eb63a16a6"
+checksum = "51887d4adc7b564537b15adcfb307936f8075dfcd5f00dde9a9f1d29383682bc"
 dependencies = [
  "cfg-if 1.0.0",
- "lazy_static",
+ "once_cell",
 ]
 
 [[package]]
@@ -403,9 +426,9 @@ dependencies = [
 
 [[package]]
 name = "cursive_core"
-version = "0.3.1"
+version = "0.3.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e27fbda42833e46148ff28db338f6189a4407e4a38ba1f4105e2f623089e66a0"
+checksum = "4f8332f2d1dc815a1c72aa95cba6a557198b8e875371a8f1951037f510d7e257"
 dependencies = [
  "ahash",
  "crossbeam-channel",
@@ -422,14 +445,38 @@ dependencies = [
  "xi-unicode",
 ]
 
+[[package]]
+name = "darling"
+version = "0.10.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0d706e75d87e35569db781a9b5e2416cff1236a47ed380831f959382ccd5f858"
+dependencies = [
+ "darling_core 0.10.2",
+ "darling_macro 0.10.2",
+]
+
 [[package]]
 name = "darling"
 version = "0.12.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5f2c43f534ea4b0b049015d00269734195e6d3f0f6635cb692251aca6f9f8b3c"
 dependencies = [
- "darling_core",
- "darling_macro",
+ "darling_core 0.12.4",
+ "darling_macro 0.12.4",
+]
+
+[[package]]
+name = "darling_core"
+version = "0.10.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f0c960ae2da4de88a91b2d920c2a7233b400bc33cb28453a2987822d8392519b"
+dependencies = [
+ "fnv",
+ "ident_case",
+ "proc-macro2",
+ "quote",
+ "strsim 0.9.3",
+ "syn",
 ]
 
 [[package]]
@@ -446,13 +493,24 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "darling_macro"
+version = "0.10.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d9b5a2f4ac4969822c62224815d069952656cadc7084fdca9751e6d959189b72"
+dependencies = [
+ "darling_core 0.10.2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "darling_macro"
 version = "0.12.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "29b5acf0dea37a7f66f7b25d2c5e93fd46f8f6968b1a5d7a3e02e97768afc95a"
 dependencies = [
- "darling_core",
+ "darling_core 0.12.4",
  "quote",
  "syn",
 ]
@@ -482,9 +540,9 @@ dependencies = [
 
 [[package]]
 name = "dirs-sys"
-version = "0.3.6"
+version = "0.3.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "03d86534ed367a67548dc68113a0f5db55432fdfbb6e6f9d77704397d95d5780"
+checksum = "1b1d1d91c932ef41c0f2663aa8b0ca0342d444d842c06914aa0a7e352d0bada6"
 dependencies = [
  "libc",
  "redox_users",
@@ -514,33 +572,33 @@ checksum = "3a68a4904193147e0a8dec3314640e6db742afd5f6e634f428a6af230d9b3591"
 
 [[package]]
 name = "either"
-version = "1.6.1"
+version = "1.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e78d4f1cc4ae33bbfc157ed5d5a5ef3bc29227303d595861deb238fcec4e9457"
+checksum = "90e5c1c8368803113bf0c9584fc495a58b86dc8a29edbf8fe877d21d9507e797"
 
 [[package]]
 name = "encoding_rs"
-version = "0.8.30"
+version = "0.8.31"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7896dc8abb250ffdda33912550faa54c88ec8b998dec0b2c55ab224921ce11df"
+checksum = "9852635589dc9f9ea1b6fe9f05b50ef208c85c834a562f0c6abb1c475736ec2b"
 dependencies = [
  "cfg-if 1.0.0",
 ]
 
 [[package]]
 name = "enum-map"
-version = "2.0.2"
+version = "2.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7848397e7221a27d81cb7f07498d563f09b23fcd52ce9f74a6a110ed28f7cd4f"
+checksum = "f5a56d54c8dd9b3ad34752ed197a4eb2a6601bc010808eb097a04a58ae4c43e1"
 dependencies = [
  "enum-map-derive",
 ]
 
 [[package]]
 name = "enum-map-derive"
-version = "0.8.0"
+version = "0.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a63b7a0ddec6f38dcec5e36257750b7a8fcaf4227e12ceb306e341d63634da05"
+checksum = "a9045e2676cd5af83c3b167d917b0a5c90a4d8e266e2683d6631b235c457fc27"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -562,7 +620,7 @@ version = "0.5.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e19c52f9ec503c8a68dc04daf71a04b07e690c32ab1a8b68e33897f255269d47"
 dependencies = [
- "darling",
+ "darling 0.12.4",
  "proc-macro2",
  "quote",
  "syn",
@@ -570,22 +628,20 @@ dependencies = [
 
 [[package]]
 name = "fastrand"
-version = "1.7.0"
+version = "1.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c3fcf0cee53519c866c09b5de1f6c56ff9d647101f81c1964fa632e148896cdf"
+checksum = "a7a407cfaa3385c4ae6b23e84623d48c2798d06e3e6a1878f7f59f17b3f86499"
 dependencies = [
  "instant",
 ]
 
 [[package]]
 name = "flate2"
-version = "1.0.22"
+version = "1.0.24"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1e6988e897c1c9c485f43b47a529cef42fde0547f9d8d41a7062518f1d8fc53f"
+checksum = "f82b0f4c27ad9f8bfd1f3208d882da2b09c301bc1c828fd3a00d0216d2fbbff6"
 dependencies = [
- "cfg-if 1.0.0",
  "crc32fast",
- "libc",
  "miniz_oxide",
 ]
 
@@ -632,9 +688,9 @@ dependencies = [
 
 [[package]]
 name = "futures"
-version = "0.3.21"
+version = "0.3.23"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f73fe65f54d1e12b726f517d3e2135ca3125a437b6d998caf1962961f7172d9e"
+checksum = "ab30e97ab6aacfe635fad58f22c2bb06c8b685f7421eb1e064a729e2a5f481fa"
 dependencies = [
  "futures-channel",
  "futures-core",
@@ -647,9 +703,9 @@ dependencies = [
 
 [[package]]
 name = "futures-channel"
-version = "0.3.21"
+version = "0.3.23"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c3083ce4b914124575708913bca19bfe887522d6e2e6d0952943f5eac4a74010"
+checksum = "2bfc52cbddcfd745bf1740338492bb0bd83d76c67b445f91c5fb29fae29ecaa1"
 dependencies = [
  "futures-core",
  "futures-sink",
@@ -657,15 +713,15 @@ dependencies = [
 
 [[package]]
 name = "futures-core"
-version = "0.3.21"
+version = "0.3.23"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0c09fd04b7e4073ac7156a9539b57a484a8ea920f79c7c675d05d289ab6110d3"
+checksum = "d2acedae88d38235936c3922476b10fced7b2b68136f5e3c03c2d5be348a1115"
 
 [[package]]
 name = "futures-executor"
-version = "0.3.21"
+version = "0.3.23"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9420b90cfa29e327d0429f19be13e7ddb68fa1cccb09d65e5706b8c7a749b8a6"
+checksum = "1d11aa21b5b587a64682c0094c2bdd4df0076c5324961a40cc3abd7f37930528"
 dependencies = [
  "futures-core",
  "futures-task",
@@ -674,15 +730,15 @@ dependencies = [
 
 [[package]]
 name = "futures-io"
-version = "0.3.21"
+version = "0.3.23"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fc4045962a5a5e935ee2fdedaa4e08284547402885ab326734432bed5d12966b"
+checksum = "93a66fc6d035a26a3ae255a6d2bca35eda63ae4c5512bef54449113f7a1228e5"
 
 [[package]]
 name = "futures-macro"
-version = "0.3.21"
+version = "0.3.23"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "33c1e13800337f4d4d7a316bf45a567dbcb6ffe087f16424852d97e97a91f512"
+checksum = "0db9cce532b0eae2ccf2766ab246f114b56b9cf6d445e00c2549fbc100ca045d"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -691,21 +747,21 @@ dependencies = [
 
 [[package]]
 name = "futures-sink"
-version = "0.3.21"
+version = "0.3.23"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "21163e139fa306126e6eedaf49ecdb4588f939600f0b1e770f4205ee4b7fa868"
+checksum = "ca0bae1fe9752cf7fd9b0064c674ae63f97b37bc714d745cbde0afb7ec4e6765"
 
 [[package]]
 name = "futures-task"
-version = "0.3.21"
+version = "0.3.23"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "57c66a976bf5909d801bbef33416c41372779507e7a6b3a5e25e4749c58f776a"
+checksum = "842fc63b931f4056a24d59de13fb1272134ce261816e063e634ad0c15cdc5306"
 
 [[package]]
 name = "futures-util"
-version = "0.3.21"
+version = "0.3.23"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d8b7abd5d659d9b90c8cba917f6ec750a74e2dc23902ef9cd4cc8c8b22e6036a"
+checksum = "f0828a5471e340229c11c77ca80017937ce3c58cb788a17e5f1c2d5c485a9577"
 dependencies = [
  "futures-channel",
  "futures-core",
@@ -750,20 +806,20 @@ dependencies = [
 
 [[package]]
 name = "getrandom"
-version = "0.2.5"
+version = "0.2.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d39cd93900197114fa1fcb7ae84ca742095eed9442088988ae74fa744e930e77"
+checksum = "4eb1a864a501629691edf6c15a593b7a51eebaa1e8468e9ddc623de7c9b58ec6"
 dependencies = [
  "cfg-if 1.0.0",
  "libc",
- "wasi 0.10.2+wasi-snapshot-preview1",
+ "wasi 0.11.0+wasi-snapshot-preview1",
 ]
 
 [[package]]
 name = "h2"
-version = "0.3.11"
+version = "0.3.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d9f1f717ddc7b2ba36df7e871fd88db79326551d3d6f1fc406fbfd28b582ff8e"
+checksum = "5ca32592cf21ac7ccab1825cd87f6c9b3d9022c44d086172ed0966bec8af30be"
 dependencies = [
  "bytes",
  "fnv",
@@ -786,9 +842,9 @@ checksum = "eabb4a44450da02c90444cf74558da904edde8fb4e9035a9a6a4e15445af0bd7"
 
 [[package]]
 name = "hashbrown"
-version = "0.11.2"
+version = "0.12.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ab5ef0d4909ef3724cc8cce6ccc8572c5c817592e9285f5464f8e86f8bd3726e"
+checksum = "8a9ee70c43aaf417c914396645a0fa852624801b24ebb7ae78fe8272889ac888"
 
 [[package]]
 name = "hermit-abi"
@@ -801,9 +857,9 @@ dependencies = [
 
 [[package]]
 name = "html5ever"
-version = "0.25.1"
+version = "0.25.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "aafcf38a1a36118242d29b92e1b08ef84e67e4a5ed06e0a80be20e6a32bfed6b"
+checksum = "e5c13fb08e5d4dfc151ee5e88bae63f7773d61852f3bdc73c9f4b9e1bde03148"
 dependencies = [
  "log",
  "mac",
@@ -815,20 +871,20 @@ dependencies = [
 
 [[package]]
 name = "http"
-version = "0.2.6"
+version = "0.2.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "31f4c6746584866f0feabcc69893c5b51beef3831656a968ed7ae254cdc4fd03"
+checksum = "75f43d41e26995c17e71ee126451dd3941010b0514a81a9d11f3b341debc2399"
 dependencies = [
  "bytes",
  "fnv",
- "itoa 1.0.1",
+ "itoa 1.0.3",
 ]
 
 [[package]]
 name = "http-body"
-version = "0.4.4"
+version = "0.4.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1ff4f84919677303da5f147645dbea6b1881f368d03ac84e1dc09031ebd7b2c6"
+checksum = "d5f38f16d184e36f2408a55281cd658ecbd3ca05cce6d6510a176eca393e26d1"
 dependencies = [
  "bytes",
  "http",
@@ -837,9 +893,9 @@ dependencies = [
 
 [[package]]
 name = "httparse"
-version = "1.6.0"
+version = "1.7.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9100414882e15fb7feccb4897e5f0ff0ff1ca7d1a86a23208ada4d7a18e6c6c4"
+checksum = "496ce29bb5a52785b44e0f7ca2847ae0bb839c9bd28f69acac9b99d461c0c04c"
 
 [[package]]
 name = "httpdate"
@@ -849,9 +905,9 @@ checksum = "c4a1e36c821dbe04574f602848a19f742f4fb3c98d40449f11bcad18d6b17421"
 
 [[package]]
 name = "hyper"
-version = "0.14.17"
+version = "0.14.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "043f0e083e9901b6cc658a77d1eb86f4fc650bbb977a4337dd63192826aa85dd"
+checksum = "02c929dc5c39e335a03c405292728118860721b10190d98c2a0f0efd5baafbac"
 dependencies = [
  "bytes",
  "futures-channel",
@@ -862,7 +918,7 @@ dependencies = [
  "http-body",
  "httparse",
  "httpdate",
- "itoa 1.0.1",
+ "itoa 1.0.3",
  "pin-project-lite",
  "socket2",
  "tokio",
@@ -903,9 +959,9 @@ dependencies = [
 
 [[package]]
 name = "indexmap"
-version = "1.8.0"
+version = "1.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "282a6247722caba404c065016bbfa522806e51714c34f5dfc3e4a3a46fcb4223"
+checksum = "10a35a97730320ffe8e2d410b5d3b69279b98d2c14bdb8b70ea89ecf7888d41e"
 dependencies = [
  "autocfg",
  "hashbrown",
@@ -922,9 +978,9 @@ dependencies = [
 
 [[package]]
 name = "ipnet"
-version = "2.3.1"
+version = "2.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "68f2d64f2edebec4ce84ad108148e67e1064789bee435edc5b60ad398714a3a9"
+checksum = "879d54834c8c76457ef4293a689b2a8c59b076067ad77b15efafbb05f92a592b"
 
 [[package]]
 name = "itertools"
@@ -943,9 +999,29 @@ checksum = "b71991ff56294aa922b450139ee08b3bfc70982c6b2c7562771375cf73542dd4"
 
 [[package]]
 name = "itoa"
-version = "1.0.1"
+version = "1.0.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6c8af84674fe1f223a982c933a0ee1086ac4d4052aa0fb8060c12c6ad838e754"
+
+[[package]]
+name = "jni"
+version = "0.19.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1aab8fc367588b89dcee83ab0fd66b72b50b72fa1904d7095045ace2b0c81c35"
+checksum = "c6df18c2e3db7e453d3c6ac5b3e9d5182664d28788126d39b91f2d1e22b017ec"
+dependencies = [
+ "cesu8",
+ "combine",
+ "jni-sys",
+ "log",
+ "thiserror",
+ "walkdir",
+]
+
+[[package]]
+name = "jni-sys"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8eaf4bc02d17cbdd7ff4c7438cafcdf7fb9a4613313ad11b4f8fefe7d3fa0130"
 
 [[package]]
 name = "js-sys"
@@ -964,30 +1040,31 @@ checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
 
 [[package]]
 name = "libc"
-version = "0.2.119"
+version = "0.2.132"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1bf2e165bb3457c8e098ea76f3e3bc9db55f87aa90d52d0e6be741470916aaa4"
+checksum = "8371e4e5341c3a96db127eb2465ac681ced4c433e01dd0e938adbef26ba93ba5"
 
 [[package]]
 name = "linked-hash-map"
-version = "0.5.4"
+version = "0.5.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7fb9b38af92608140b86b693604b9ffcc5824240a484d1ecd4795bacb2fe88f3"
+checksum = "0717cef1bc8b636c6e1c1bbdefc09e6322da8a9321966e8928ef80d20f7f770f"
 
 [[package]]
 name = "lock_api"
-version = "0.4.6"
+version = "0.4.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "88943dd7ef4a2e5a4bfa2753aaab3013e34ce2533d1996fb18ef591e315e2b3b"
+checksum = "327fa5b6a6940e4699ec49a9beae1ea4845c6bab9314e4f84ac68742139d8c53"
 dependencies = [
+ "autocfg",
  "scopeguard",
 ]
 
 [[package]]
 name = "log"
-version = "0.4.14"
+version = "0.4.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "51b9bbe6c47d51fc3e1a9b945965946b4c44142ab8792c50835a980d362c2710"
+checksum = "abb12e687cfb44aa40f41fc3978ef76448f9b6038cad6aef4259d3c095a2382e"
 dependencies = [
  "cfg-if 1.0.0",
 ]
@@ -1026,9 +1103,9 @@ checksum = "a3e378b66a060d48947b590737b30a1be76706c8dd7b8ba0f2fe3989c68a853f"
 
 [[package]]
 name = "memchr"
-version = "2.4.1"
+version = "2.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "308cc39be01b73d0d18f82a0e7b2a3df85245f84af96fdddc5d202d27e47b86a"
+checksum = "2dffe52ecf27772e601905b7522cb4ef790d2cc203488bbd0e2fe85fcb74566d"
 
 [[package]]
 name = "memoffset"
@@ -1056,12 +1133,11 @@ dependencies = [
 
 [[package]]
 name = "miniz_oxide"
-version = "0.4.4"
+version = "0.5.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a92518e98c078586bc6c934028adcca4c92a53d6a958196de835170a01d84e4b"
+checksum = "6f5c75688da582b8ffc1f1799e9db273f32133c49e048f614d22ec3256773ccc"
 dependencies = [
  "adler",
- "autocfg",
 ]
 
 [[package]]
@@ -1079,15 +1155,14 @@ dependencies = [
 
 [[package]]
 name = "mio"
-version = "0.8.0"
+version = "0.8.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ba272f85fa0b41fc91872be579b3bbe0f56b792aa361a380eb669469f68dafb2"
+checksum = "57ee1c23c7c63b0c9250c339ffdc69255f110b298b901b9f6c82547b7b87caaf"
 dependencies = [
  "libc",
  "log",
- "miow",
- "ntapi",
- "winapi",
+ "wasi 0.11.0+wasi-snapshot-preview1",
+ "windows-sys",
 ]
 
 [[package]]
@@ -1101,9 +1176,9 @@ dependencies = [
 
 [[package]]
 name = "native-tls"
-version = "0.2.8"
+version = "0.2.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "48ba9f7719b5a0f42f338907614285fb5fd70e53858141f69898a1fb7203b24d"
+checksum = "fd7e2f3618557f980e0b17e8856252eee3c97fa12c54dff0ca290fb6266ca4a9"
 dependencies = [
  "lazy_static",
  "libc",
@@ -1128,6 +1203,59 @@ dependencies = [
  "pkg-config",
 ]
 
+[[package]]
+name = "ndk"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d64d6af06fde0e527b1ba5c7b79a6cc89cfc46325b0b2887dffe8f70197e0c3c"
+dependencies = [
+ "bitflags",
+ "jni-sys",
+ "ndk-sys",
+ "num_enum",
+ "thiserror",
+]
+
+[[package]]
+name = "ndk-context"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "27b02d87554356db9e9a873add8782d4ea6e3e58ea071a9adb9a2e8ddb884a8b"
+
+[[package]]
+name = "ndk-glue"
+version = "0.4.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3648f3609716eb7dbf5f5b5d4b84fcd67dd4c34efcdb12e4a6c0929c2ac48349"
+dependencies = [
+ "lazy_static",
+ "libc",
+ "log",
+ "ndk",
+ "ndk-context",
+ "ndk-macro",
+ "ndk-sys",
+]
+
+[[package]]
+name = "ndk-macro"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "05d1c6307dc424d0f65b9b06e94f88248e6305726b14729fd67a5e47b2dc481d"
+dependencies = [
+ "darling 0.10.2",
+ "proc-macro-crate 0.1.5",
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "ndk-sys"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e1bcdd74c20ad5d95aacd60ef9ba40fdf77f767051040541df557b7a9b2a2121"
+
 [[package]]
 name = "new_debug_unreachable"
 version = "1.0.4"
@@ -1164,18 +1292,18 @@ dependencies = [
 
 [[package]]
 name = "num-complex"
-version = "0.4.0"
+version = "0.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "26873667bbbb7c5182d4a37c1add32cdf09f841af72da53318fdb81543c15085"
+checksum = "7ae39348c8bc5fbd7f40c727a9925f03517afd2ab27d46702108b6a7e5414c19"
 dependencies = [
  "num-traits",
 ]
 
 [[package]]
 name = "num-integer"
-version = "0.1.44"
+version = "0.1.45"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d2cc698a63b549a70bc047073d2949cce27cd1c7b0a4a862d08a8031bc2801db"
+checksum = "225d3389fb3509a24c93f5c29eb6bde2586b98d9f016636dff58d7c6f7569cd9"
 dependencies = [
  "autocfg",
  "num-traits",
@@ -1183,9 +1311,9 @@ dependencies = [
 
 [[package]]
 name = "num-iter"
-version = "0.1.42"
+version = "0.1.43"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b2021c8337a54d21aca0d59a92577a029af9431cb59b909b03252b9c164fad59"
+checksum = "7d03e6c028c5dc5cac6e2dec0efda81fc887605bb3d884578bb6d6bf7514e252"
 dependencies = [
  "autocfg",
  "num-integer",
@@ -1194,9 +1322,9 @@ dependencies = [
 
 [[package]]
 name = "num-rational"
-version = "0.4.0"
+version = "0.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d41702bd167c2df5520b384281bc111a4b5efcf7fbc4c9c222c815b07e0a6a6a"
+checksum = "0638a1c9d0a3c0914158145bc76cff373a75a627e6ecbfb71cbe6f453a5a19b0"
 dependencies = [
  "autocfg",
  "num-integer",
@@ -1205,9 +1333,9 @@ dependencies = [
 
 [[package]]
 name = "num-traits"
-version = "0.2.14"
+version = "0.2.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9a64b1ec5cda2586e284722486d802acf1f7dbdc623e2bfc57e65ca1cd099290"
+checksum = "578ede34cf02f8924ab9447f50c28075b4d3e5b269972345e7e0372b38c6cdcd"
 dependencies = [
  "autocfg",
 ]
@@ -1222,11 +1350,32 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "num_enum"
+version = "0.5.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cf5395665662ef45796a4ff5486c5d41d29e0c09640af4c5f17fd94ee2c119c9"
+dependencies = [
+ "num_enum_derive",
+]
+
+[[package]]
+name = "num_enum_derive"
+version = "0.5.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3b0498641e53dd6ac1a4f22547548caa6864cc4933784319cd1775271c5a46ce"
+dependencies = [
+ "proc-macro-crate 1.2.1",
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "num_threads"
-version = "0.1.3"
+version = "0.1.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "97ba99ba6393e2c3734791401b66902d981cb03bf190af674ca69949b6d5fb15"
+checksum = "2819ce041d2ee131036f4fc9d6ae7ae125a3a40e97ba64d04fe799ad9dabbb44"
 dependencies = [
  "libc",
 ]
@@ -1239,9 +1388,9 @@ checksum = "b8f8bdf33df195859076e54ab11ee78a1b208382d3a26ec40d142ffc1ecc49ef"
 
 [[package]]
 name = "once_cell"
-version = "1.9.0"
+version = "1.13.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "da32515d9f6e6e489d7bc9d84c71b060db7247dc035bbe44eac88cf87486d8d5"
+checksum = "074864da206b4973b84eb91683020dbefd6a8c3f0f38e054d93954e891935e4e"
 
 [[package]]
 name = "oorandom"
@@ -1251,18 +1400,30 @@ checksum = "0ab1bc2a289d34bd04a330323ac98a1b4bc82c9d9fcb1e66b63caa84da26b575"
 
 [[package]]
 name = "openssl"
-version = "0.10.38"
+version = "0.10.41"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0c7ae222234c30df141154f159066c5093ff73b63204dcda7121eb082fc56a95"
+checksum = "618febf65336490dfcf20b73f885f5651a0c89c64c2d4a8c3662585a70bf5bd0"
 dependencies = [
  "bitflags",
  "cfg-if 1.0.0",
  "foreign-types",
  "libc",
  "once_cell",
+ "openssl-macros",
  "openssl-sys",
 ]
 
+[[package]]
+name = "openssl-macros"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b501e44f11665960c7e7fcf062c7d96a14ade4aa98116c004b2e37b5be7d736c"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "openssl-probe"
 version = "0.1.5"
@@ -1271,9 +1432,9 @@ checksum = "ff011a302c396a5197692431fc1948019154afc178baf7d8e37367442a4601cf"
 
 [[package]]
 name = "openssl-sys"
-version = "0.9.72"
+version = "0.9.75"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7e46109c383602735fa0a2e48dd2b7c892b048e1bf69e5c3b1d804b7d9c203cb"
+checksum = "e5f9bd0c2710541a3cda73d6f9ac4f1b240de4ae261065d309dbe73d9dceb42f"
 dependencies = [
  "autocfg",
  "cc",
@@ -1317,12 +1478,12 @@ dependencies = [
 
 [[package]]
 name = "parking_lot"
-version = "0.12.0"
+version = "0.12.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "87f5ec2493a61ac0506c0f4199f99070cbe83857b0337006a30f3e6719b8ef58"
+checksum = "3742b2c103b9f06bc9fff0a37ff4912935851bee6d36f3c02bcc755bcfec228f"
 dependencies = [
  "lock_api",
- "parking_lot_core 0.9.1",
+ "parking_lot_core 0.9.3",
 ]
 
 [[package]]
@@ -1341,9 +1502,9 @@ dependencies = [
 
 [[package]]
 name = "parking_lot_core"
-version = "0.9.1"
+version = "0.9.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "28141e0cc4143da2443301914478dc976a61ffdb3f043058310c70df2fed8954"
+checksum = "09a279cbf25cb0757810394fbc1e359949b59e348145c643a939a525692e6929"
 dependencies = [
  "cfg-if 1.0.0",
  "libc",
@@ -1385,7 +1546,7 @@ version = "0.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cbffee61585b0411840d3ece935cce9cb6321f01c45477d30066498cd5e1a815"
 dependencies = [
- "phf_generator",
+ "phf_generator 0.8.0",
  "phf_shared 0.8.0",
 ]
 
@@ -1396,7 +1557,17 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "17367f0cc86f2d25802b2c26ee58a7b23faeccf78a396094c13dced0d0182526"
 dependencies = [
  "phf_shared 0.8.0",
- "rand",
+ "rand 0.7.3",
+]
+
+[[package]]
+name = "phf_generator"
+version = "0.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5d5285893bb5eb82e6aaf5d59ee909a06a16737a8970984dd7746ba9283498d6"
+dependencies = [
+ "phf_shared 0.10.0",
+ "rand 0.8.5",
 ]
 
 [[package]]
@@ -1405,7 +1576,7 @@ version = "0.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7f6fde18ff429ffc8fe78e2bf7f8b7a5a5a6e2a8b58bc5a9ac69198bbda9189c"
 dependencies = [
- "phf_generator",
+ "phf_generator 0.8.0",
  "phf_shared 0.8.0",
  "proc-macro-hack",
  "proc-macro2",
@@ -1433,9 +1604,9 @@ dependencies = [
 
 [[package]]
 name = "pin-project-lite"
-version = "0.2.8"
+version = "0.2.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e280fbe77cc62c91527259e9442153f4688736748d24660126286329742b4c6c"
+checksum = "e0a7ae3ac2f1173085d398531c705756c94a4c56843785df85a60c1a0afac116"
 
 [[package]]
 name = "pin-utils"
@@ -1445,9 +1616,9 @@ checksum = "8b870d8c151b6f2fb93e84a13146138f05d02ed11c7e7c54f8826aaaf7c9f184"
 
 [[package]]
 name = "pkg-config"
-version = "0.3.24"
+version = "0.3.25"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "58893f751c9b0412871a09abd62ecd2a00298c6c83befa223ef98c52aef40cbe"
+checksum = "1df8c4ec4b0627e53bdf214615ad287367e482558cf84b109250b37464dc03ae"
 
 [[package]]
 name = "plotters"
@@ -1464,15 +1635,15 @@ dependencies = [
 
 [[package]]
 name = "plotters-backend"
-version = "0.3.2"
+version = "0.3.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d88417318da0eaf0fdcdb51a0ee6c3bed624333bff8f946733049380be67ac1c"
+checksum = "193228616381fecdc1224c62e96946dfbc73ff4384fba576e052ff8c1bea8142"
 
 [[package]]
 name = "plotters-svg"
-version = "0.3.1"
+version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "521fa9638fa597e1dc53e9412a4f9cefb01187ee1f7413076f9e6749e2885ba9"
+checksum = "f9a81d2759aae1dae668f783c308bc5c8ebd191ff4184aaa1b37f65a6ae5a56f"
 dependencies = [
  "plotters-backend",
 ]
@@ -1489,6 +1660,26 @@ version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "925383efa346730478fb4838dbe9137d2a47675ad789c546d150a6e1dd4ab31c"
 
+[[package]]
+name = "proc-macro-crate"
+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1d6ea3c4595b96363c13943497db34af4460fb474a95c43f4446ad341b8c9785"
+dependencies = [
+ "toml",
+]
+
+[[package]]
+name = "proc-macro-crate"
+version = "1.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "eda0fc3b0fb7c975631757e14d9049da17374063edb6ebbcbc54d880d4fe94e9"
+dependencies = [
+ "once_cell",
+ "thiserror",
+ "toml",
+]
+
 [[package]]
 name = "proc-macro-hack"
 version = "0.5.19"
@@ -1497,11 +1688,11 @@ checksum = "dbf0c48bc1d91375ae5c3cd81e3722dff1abcf81a30960240640d223f59fe0e5"
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.36"
+version = "1.0.43"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c7342d5883fbccae1cc37a2353b09c87c9b0f3afd73f5fb9bba687a1f733b029"
+checksum = "0a2ca2c61bc9f3d74d2886294ab7b9853abd9c1ad903a3ac7815c58989bb7bab"
 dependencies = [
- "unicode-xid",
+ "unicode-ident",
 ]
 
 [[package]]
@@ -1517,9 +1708,9 @@ dependencies = [
 
 [[package]]
 name = "quote"
-version = "1.0.15"
+version = "1.0.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "864d3e96a899863136fc6e99f3d7cae289dafe43bf2c5ac19b70df7210c0a145"
+checksum = "bbe448f377a7d6961e30f5955f9b8d106c3f5e449d493ee1b125c1d43c2b5179"
 dependencies = [
  "proc-macro2",
 ]
@@ -1532,12 +1723,23 @@ checksum = "6a6b1679d49b24bbfe0c803429aa1874472f50d9b363131f0e89fc356b544d03"
 dependencies = [
  "getrandom 0.1.16",
  "libc",
- "rand_chacha",
- "rand_core",
+ "rand_chacha 0.2.2",
+ "rand_core 0.5.1",
  "rand_hc",
  "rand_pcg",
 ]
 
+[[package]]
+name = "rand"
+version = "0.8.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "34af8d1a0e25924bc5b7c43c079c942339d8f0a8b57c39049bef581b46327404"
+dependencies = [
+ "libc",
+ "rand_chacha 0.3.1",
+ "rand_core 0.6.3",
+]
+
 [[package]]
 name = "rand_chacha"
 version = "0.2.2"
@@ -1545,7 +1747,17 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f4c8ed856279c9737206bf725bf36935d8666ead7aa69b52be55af369d193402"
 dependencies = [
  "ppv-lite86",
- "rand_core",
+ "rand_core 0.5.1",
+]
+
+[[package]]
+name = "rand_chacha"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e6c10a63a0fa32252be49d21e7709d4d4baf8d231c2dbce1eaa8141b9b127d88"
+dependencies = [
+ "ppv-lite86",
+ "rand_core 0.6.3",
 ]
 
 [[package]]
@@ -1557,13 +1769,22 @@ dependencies = [
  "getrandom 0.1.16",
 ]
 
+[[package]]
+name = "rand_core"
+version = "0.6.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d34f1408f55294453790c48b2f1ebbb1c5b4b7563eb1f418bcfcfdbb06ebb4e7"
+dependencies = [
+ "getrandom 0.2.7",
+]
+
 [[package]]
 name = "rand_hc"
 version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ca3129af7b92a17112d59ad498c6f81eaf463253766b90396d39ea7a39d6613c"
 dependencies = [
- "rand_core",
+ "rand_core 0.5.1",
 ]
 
 [[package]]
@@ -1572,14 +1793,14 @@ version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "16abd0c1b639e9eb4d7c50c0b8100b0d0f849be2349829c740fe8e6eb4816429"
 dependencies = [
- "rand_core",
+ "rand_core 0.5.1",
 ]
 
 [[package]]
 name = "rayon"
-version = "1.5.1"
+version = "1.5.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c06aca804d41dbc8ba42dfd964f0d01334eceb64314b9ecf7c5fad5188a06d90"
+checksum = "bd99e5772ead8baa5215278c9b15bf92087709e9c1b2d1f97cdb5a183c933a7d"
 dependencies = [
  "autocfg",
  "crossbeam-deque",
@@ -1589,22 +1810,21 @@ dependencies = [
 
 [[package]]
 name = "rayon-core"
-version = "1.9.1"
+version = "1.9.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d78120e2c850279833f1dd3582f730c4ab53ed95aeaaaa862a2a5c71b1656d8e"
+checksum = "258bcdb5ac6dad48491bb2992db6b7cf74878b0384908af124823d118c99683f"
 dependencies = [
  "crossbeam-channel",
  "crossbeam-deque",
  "crossbeam-utils",
- "lazy_static",
  "num_cpus",
 ]
 
 [[package]]
 name = "redox_syscall"
-version = "0.2.10"
+version = "0.2.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8383f39639269cde97d255a32bdb68c047337295414940c68bdd30c2e13203ff"
+checksum = "fb5a58c1855b4b6819d59012155603f0b22ad30cad752600aadfcb695265519a"
 dependencies = [
  "bitflags",
 ]
@@ -1620,19 +1840,20 @@ dependencies = [
 
 [[package]]
 name = "redox_users"
-version = "0.4.0"
+version = "0.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "528532f3d801c87aec9def2add9ca802fe569e44a544afe633765267840abe64"
+checksum = "b033d837a7cf162d7993aded9304e30a83213c648b6e389db233191f891e5c2b"
 dependencies = [
- "getrandom 0.2.5",
+ "getrandom 0.2.7",
  "redox_syscall",
+ "thiserror",
 ]
 
 [[package]]
 name = "regex"
-version = "1.5.6"
+version = "1.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d83f127d94bdbcda4c8cc2e50f6f84f4b611f69c902699ca385a39c3a75f9ff1"
+checksum = "4c4eb3267174b8c6c2f654116623910a0fef09c4753f8dd83db29c48a0df988b"
 dependencies = [
  "regex-syntax",
 ]
@@ -1645,9 +1866,9 @@ checksum = "6c230d73fb8d8c1b9c0b3135c5142a8acee3a0558fb8db5cf1cb65f8d7862132"
 
 [[package]]
 name = "regex-syntax"
-version = "0.6.26"
+version = "0.6.27"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "49b3de9ec5dc0a3417da371aab17d729997c15010e7fd24ff707773a33bddb64"
+checksum = "a3f87b73ce11b1619a3c6332f45341e0047173771e8b8b73f87bfeefb7b56244"
 
 [[package]]
 name = "remove_dir_all"
@@ -1660,9 +1881,9 @@ dependencies = [
 
 [[package]]
 name = "reqwest"
-version = "0.11.9"
+version = "0.11.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "87f242f1488a539a79bac6dbe7c8609ae43b7914b7736210f239a37cccb32525"
+checksum = "b75aa69a3f06bbcc66ede33af2af253c6f7a86b1ca0033f60c580a27074fbf92"
 dependencies = [
  "async-compression",
  "base64",
@@ -1689,11 +1910,12 @@ dependencies = [
  "tokio",
  "tokio-native-tls",
  "tokio-util",
+ "tower-service",
  "url",
  "wasm-bindgen",
  "wasm-bindgen-futures",
  "web-sys",
- "winreg 0.7.0",
+ "winreg 0.10.1",
 ]
 
 [[package]]
@@ -1707,9 +1929,9 @@ dependencies = [
 
 [[package]]
 name = "ryu"
-version = "1.0.9"
+version = "1.0.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "73b4b750c782965c211b42f022f59af1fbceabdd026623714f104152f1ec149f"
+checksum = "4501abdff3ae82a1c1b477a17252eb69cee9e66eb915c1abaa4f44d873df9f09"
 
 [[package]]
 name = "same-file"
@@ -1722,12 +1944,12 @@ dependencies = [
 
 [[package]]
 name = "schannel"
-version = "0.1.19"
+version = "0.1.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8f05ba609c234e60bee0d547fe94a4c7e9da733d1c962cf6e59efa4cd9c8bc75"
+checksum = "88d6731146462ea25d9244b2ed5fd1d716d25c52e4d54aa4fb0f3c4e9854dbe2"
 dependencies = [
  "lazy_static",
- "winapi",
+ "windows-sys",
 ]
 
 [[package]]
@@ -1754,9 +1976,9 @@ dependencies = [
 
 [[package]]
 name = "security-framework"
-version = "2.6.1"
+version = "2.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2dc14f172faf8a0194a3aded622712b0de276821addc574fa54fc0a1167e10dc"
+checksum = "2bc1bb97804af6631813c55739f771071e0f2ed33ee20b68c86ec505d906356c"
 dependencies = [
  "bitflags",
  "core-foundation",
@@ -1797,9 +2019,9 @@ dependencies = [
 
 [[package]]
 name = "semver"
-version = "1.0.6"
+version = "1.0.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a4a3381e03edd24287172047536f20cabde766e2cd3e65e6b00fb3af51c4f38d"
+checksum = "93f6841e709003d68bb2deee8c343572bf446003ec20a583e76f7b15cebf3711"
 
 [[package]]
 name = "serde"
@@ -1833,11 +2055,11 @@ dependencies = [
 
 [[package]]
 name = "serde_json"
-version = "1.0.79"
+version = "1.0.83"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8e8d9fa5c3b304765ce1fd9c4c8a3de2c8db365a5b91be52f186efc675681d95"
+checksum = "38dd04e3c8279e75b31ef29dbdceebfe5ad89f4d0937213c53f7d49d01b3d5a7"
 dependencies = [
- "itoa 1.0.1",
+ "itoa 1.0.3",
  "ryu",
  "serde",
 ]
@@ -1849,16 +2071,16 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d3491c14715ca2294c4d6a88f15e84739788c1d030eed8c110436aafdaa2f3fd"
 dependencies = [
  "form_urlencoded",
- "itoa 1.0.1",
+ "itoa 1.0.3",
  "ryu",
  "serde",
 ]
 
 [[package]]
 name = "serde_yaml"
-version = "0.8.23"
+version = "0.8.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a4a521f2940385c165a24ee286aa8599633d162077a54bdcae2a6fd5a7bfa7a0"
+checksum = "578a7433b776b56a35785ed5ce9a7e777ac0598aac5a6dd1b4b18a307c7fc71b"
 dependencies = [
  "indexmap",
  "ryu",
@@ -1878,9 +2100,9 @@ dependencies = [
 
 [[package]]
 name = "signal-hook"
-version = "0.3.13"
+version = "0.3.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "647c97df271007dcea485bb74ffdb57f2e683f1306c854f468a0c244badabf2d"
+checksum = "a253b5e89e2698464fc26b545c9edceb338e18a89effeeecfea192c3025be29d"
 dependencies = [
  "libc",
  "signal-hook-registry",
@@ -1888,9 +2110,9 @@ dependencies = [
 
 [[package]]
 name = "signal-hook-mio"
-version = "0.2.1"
+version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "29fd5867f1c4f2c5be079aee7a2adf1152ebb04a4bc4d341f504b7dece607ed4"
+checksum = "29ad2e15f37ec9a6cc544097b78a1ec90001e9f71b81338ca39f430adaca99af"
 dependencies = [
  "libc",
  "mio 0.7.14",
@@ -1908,21 +2130,24 @@ dependencies = [
 
 [[package]]
 name = "siphasher"
-version = "0.3.9"
+version = "0.3.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a86232ab60fa71287d7f2ddae4a7073f6b7aac33631c3015abb556f08c6d0a3e"
+checksum = "7bd3e3206899af3f8b12af284fafc038cc1dc2b41d1b89dd17297221c5d225de"
 
 [[package]]
 name = "slab"
-version = "0.4.5"
+version = "0.4.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9def91fd1e018fe007022791f865d0ccc9b3a0d5001e01aabb8b40e46000afb5"
+checksum = "4614a76b2a8be0058caa9dbbaf66d988527d86d003c11a94fbd335d7661edcef"
+dependencies = [
+ "autocfg",
+]
 
 [[package]]
 name = "smallvec"
-version = "1.8.0"
+version = "1.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f2dd574626839106c320a323308629dcb1acfc96e32a8cba364ddc61ac23ee83"
+checksum = "2fd0db749597d91ff862fd1d55ea87f7855a744a8425a64695b6fca237d1dad1"
 
 [[package]]
 name = "so"
@@ -1948,6 +2173,7 @@ dependencies = [
  "termimad",
  "thiserror",
  "tokio",
+ "webbrowser",
 ]
 
 [[package]]
@@ -1968,13 +2194,13 @@ checksum = "a8f112729512f8e442d81f95a8a7ddf2b7c6b8a1a6f509a95864142b30cab2d3"
 
 [[package]]
 name = "string_cache"
-version = "0.8.3"
+version = "0.8.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "33994d0838dc2d152d17a62adf608a869b5e846b65b389af7f3dbc1de45c5b26"
+checksum = "213494b7a2b503146286049378ce02b482200519accc31872ee8be91fa820a08"
 dependencies = [
- "lazy_static",
  "new_debug_unreachable",
- "parking_lot 0.11.2",
+ "once_cell",
+ "parking_lot 0.12.1",
  "phf_shared 0.10.0",
  "precomputed-hash",
  "serde",
@@ -1982,12 +2208,12 @@ dependencies = [
 
 [[package]]
 name = "string_cache_codegen"
-version = "0.5.1"
+version = "0.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f24c8e5e19d22a726626f1a5e16fe15b132dcf21d10177fa5a45ce7962996b97"
+checksum = "6bb30289b722be4ff74a408c3cc27edeaad656e06cb1fe8fa9231fa59c728988"
 dependencies = [
- "phf_generator",
- "phf_shared 0.8.0",
+ "phf_generator 0.10.0",
+ "phf_shared 0.10.0",
  "proc-macro2",
  "quote",
 ]
@@ -1998,6 +2224,12 @@ version = "0.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8ea5119cdb4c55b55d432abb513a0429384878c15dde60cc77b1c99de1a95a6a"
 
+[[package]]
+name = "strsim"
+version = "0.9.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6446ced80d6c486436db5c078dde11a9f73d42b57fb273121e160b84f63d894c"
+
 [[package]]
 name = "strsim"
 version = "0.10.0"
@@ -2031,9 +2263,9 @@ dependencies = [
 
 [[package]]
 name = "tendril"
-version = "0.4.2"
+version = "0.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a9ef557cb397a4f0a5a3a628f06515f78563f2209e64d47055d9dc6052bf5e33"
+checksum = "d24a120c5fc464a3458240ee02c299ebcb9d67b5249c8848b09d639dca8d7bb0"
 dependencies = [
  "futf",
  "mac",
@@ -2092,18 +2324,18 @@ checksum = "8eaa81235c7058867fa8c0e7314f33dcce9c215f535d1913822a2b3f5e289f3c"
 
 [[package]]
 name = "thiserror"
-version = "1.0.30"
+version = "1.0.32"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "854babe52e4df1653706b98fcfc05843010039b406875930a70e4d9644e5c417"
+checksum = "f5f6586b7f764adc0231f4c79be7b920e766bb2f3e51b3661cdb263828f19994"
 dependencies = [
  "thiserror-impl",
 ]
 
 [[package]]
 name = "thiserror-impl"
-version = "1.0.30"
+version = "1.0.32"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "aa32fd3f627f367fe16f893e2597ae3c05020f8bba2666a4e6ea73d377e5714b"
+checksum = "12bafc5b54507e0149cdf1b145a5d80ab80a90bcd9275df43d4fff68460f6c21"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -2112,11 +2344,11 @@ dependencies = [
 
 [[package]]
 name = "time"
-version = "0.3.7"
+version = "0.3.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "004cbc98f30fa233c61a38bc77e96a9106e65c88f2d3bef182ae952027e5753d"
+checksum = "db76ff9fa4b1458b3c7f077f3ff9887394058460d21e634355b273aaf11eea45"
 dependencies = [
- "itoa 1.0.1",
+ "itoa 1.0.3",
  "libc",
  "num_threads",
 ]
@@ -2133,9 +2365,9 @@ dependencies = [
 
 [[package]]
 name = "tinyvec"
-version = "1.5.1"
+version = "1.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2c1c1d5a42b6245520c249549ec267180beaffcc0615401ac8e31853d4b6d8d2"
+checksum = "87cc5ceb3875bb20c2890005a4e226a4651264a5c75edb2421b52861a0a0cb50"
 dependencies = [
  "tinyvec_macros",
 ]
@@ -2148,17 +2380,18 @@ checksum = "cda74da7e1a664f795bb1f8a87ec406fb89a02522cf6e50620d016add6dbbf5c"
 
 [[package]]
 name = "tokio"
-version = "1.17.0"
+version = "1.20.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2af73ac49756f3f7c01172e34a23e5d0216f6c32333757c2c61feb2bbff5a5ee"
+checksum = "7a8325f63a7d4774dd041e363b2409ed1c5cbbd0f867795e661df066b2b0a581"
 dependencies = [
+ "autocfg",
  "bytes",
  "libc",
  "memchr",
- "mio 0.8.0",
+ "mio 0.8.4",
  "num_cpus",
  "once_cell",
- "parking_lot 0.12.0",
+ "parking_lot 0.12.1",
  "pin-project-lite",
  "signal-hook-registry",
  "socket2",
@@ -2168,9 +2401,9 @@ dependencies = [
 
 [[package]]
 name = "tokio-macros"
-version = "1.7.0"
+version = "1.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b557f72f448c511a979e2564e55d74e6c4432fc96ff4f6241bc6bded342643b7"
+checksum = "9724f9a975fb987ef7a3cd9be0350edcbe130698af5b8f7a631e23d42d052484"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -2189,38 +2422,38 @@ dependencies = [
 
 [[package]]
 name = "tokio-util"
-version = "0.6.9"
+version = "0.7.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9e99e1983e5d376cd8eb4b66604d2e99e79f5bd988c3055891dcd8c9e2604cc0"
+checksum = "cc463cd8deddc3770d20f9852143d50bf6094e640b485cb2e189a2099085ff45"
 dependencies = [
  "bytes",
  "futures-core",
  "futures-sink",
- "log",
  "pin-project-lite",
  "tokio",
+ "tracing",
 ]
 
 [[package]]
 name = "toml"
-version = "0.5.8"
+version = "0.5.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a31142970826733df8241ef35dc040ef98c679ab14d7c3e54d827099b3acecaa"
+checksum = "8d82e1a7758622a465f8cee077614c73484dac5b836c02ff6a40d5d1010324d7"
 dependencies = [
  "serde",
 ]
 
 [[package]]
 name = "tower-service"
-version = "0.3.1"
+version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "360dfd1d6d30e05fda32ace2c8c70e9c0a9da713275777f5a4dbb8a1893930c6"
+checksum = "b6bc1c9ce2b5135ac7f93c72918fc37feb872bdc6a5533a8b85eb4b86bfdae52"
 
 [[package]]
 name = "tracing"
-version = "0.1.31"
+version = "0.1.36"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f6c650a8ef0cd2dd93736f033d21cbd1224c5a967aa0c258d00fcf7dafef9b9f"
+checksum = "2fce9567bd60a67d08a16488756721ba392f24f29006402881e43b19aac64307"
 dependencies = [
  "cfg-if 1.0.0",
  "pin-project-lite",
@@ -2229,11 +2462,11 @@ dependencies = [
 
 [[package]]
 name = "tracing-core"
-version = "0.1.22"
+version = "0.1.29"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "03cfcb51380632a72d3111cb8d3447a8d908e577d31beeac006f836383d29a23"
+checksum = "5aeea4303076558a00714b823f9ad67d58a3bbda1df83d8827d21193156e22f7"
 dependencies = [
- "lazy_static",
+ "once_cell",
 ]
 
 [[package]]
@@ -2253,15 +2486,21 @@ dependencies = [
 
 [[package]]
 name = "unicode-bidi"
-version = "0.3.7"
+version = "0.3.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "099b7128301d285f79ddd55b9a83d5e6b9e97c92e0ea0daebee7263e932de992"
+
+[[package]]
+name = "unicode-ident"
+version = "1.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1a01404663e3db436ed2746d9fefef640d868edae3cceb81c3b8d5732fda678f"
+checksum = "c4f5b37a154999a8f3f98cc23a628d850e154479cd94decf3414696e12e31aaf"
 
 [[package]]
 name = "unicode-normalization"
-version = "0.1.19"
+version = "0.1.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d54590932941a9e9266f0832deed84ebe1bf2e4c9e4a3554d393d18f5e854bf9"
+checksum = "854cbdc4f7bc6ae19c820d44abdc3277ac3e1b2b93db20a636825d9322fb60e6"
 dependencies = [
  "tinyvec",
 ]
@@ -2280,9 +2519,9 @@ checksum = "3ed742d4ea2bd1176e236172c8429aaf54486e7ac098db29ffe6529e0ce50973"
 
 [[package]]
 name = "unicode-xid"
-version = "0.2.2"
+version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8ccb82d61f80a663efe1f787a51b16b5a51e3314d6ac365b08639f52387b33f3"
+checksum = "957e51f3646910546462e67d5f7599b9e4fb8acdd304b087a6494730f9eebf04"
 
 [[package]]
 name = "url"
@@ -2349,9 +2588,9 @@ checksum = "cccddf32554fecc6acb585f82a32a72e28b48f8c4c1883ddfeeeaa96f7d8e519"
 
 [[package]]
 name = "wasi"
-version = "0.10.2+wasi-snapshot-preview1"
+version = "0.11.0+wasi-snapshot-preview1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fd6fbd9a79829dd1ad0cc20627bf1ed606756a7f77edff7b66b7064f9cb327c6"
+checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
 
 [[package]]
 name = "wasm-bindgen"
@@ -2429,6 +2668,26 @@ dependencies = [
  "wasm-bindgen",
 ]
 
+[[package]]
+name = "webbrowser"
+version = "0.7.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fc6a3cffdb686fbb24d9fb8f03a213803277ed2300f11026a3afe1f108dc021b"
+dependencies = [
+ "jni",
+ "ndk-glue",
+ "url",
+ "web-sys",
+ "widestring",
+ "winapi",
+]
+
+[[package]]
+name = "widestring"
+version = "0.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "17882f045410753661207383517a6f62ec3dbeb6a4ed2acce01f0728238d1983"
+
 [[package]]
 name = "winapi"
 version = "0.3.9"
@@ -2462,9 +2721,9 @@ checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
 
 [[package]]
 name = "windows-sys"
-version = "0.32.0"
+version = "0.36.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3df6e476185f92a12c072be4a189a0210dcdcf512a1891d6dff9edb874deadc6"
+checksum = "ea04155a16a59f9eab786fe12a4a450e75cdb175f9e0d80da1e17db09f55b8d2"
 dependencies = [
  "windows_aarch64_msvc",
  "windows_i686_gnu",
@@ -2475,33 +2734,33 @@ dependencies = [
 
 [[package]]
 name = "windows_aarch64_msvc"
-version = "0.32.0"
+version = "0.36.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d8e92753b1c443191654ec532f14c199742964a061be25d77d7a96f09db20bf5"
+checksum = "9bb8c3fd39ade2d67e9874ac4f3db21f0d710bee00fe7cab16949ec184eeaa47"
 
 [[package]]
 name = "windows_i686_gnu"
-version = "0.32.0"
+version = "0.36.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6a711c68811799e017b6038e0922cb27a5e2f43a2ddb609fe0b6f3eeda9de615"
+checksum = "180e6ccf01daf4c426b846dfc66db1fc518f074baa793aa7d9b9aaeffad6a3b6"
 
 [[package]]
 name = "windows_i686_msvc"
-version = "0.32.0"
+version = "0.36.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "146c11bb1a02615db74680b32a68e2d61f553cc24c4eb5b4ca10311740e44172"
+checksum = "e2e7917148b2812d1eeafaeb22a97e4813dfa60a3f8f78ebe204bcc88f12f024"
 
 [[package]]
 name = "windows_x86_64_gnu"
-version = "0.32.0"
+version = "0.36.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c912b12f7454c6620635bbff3450962753834be2a594819bd5e945af18ec64bc"
+checksum = "4dcd171b8776c41b97521e5da127a2d86ad280114807d0b2ab1e462bc764d9e1"
 
 [[package]]
 name = "windows_x86_64_msvc"
-version = "0.32.0"
+version = "0.36.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "504a2476202769977a040c6364301a3f65d0cc9e3fb08600b2bda150a0488316"
+checksum = "c811ca4a8c853ef420abd8592ba53ddbbac90410fab6903b3e79972a631f7680"
 
 [[package]]
 name = "winreg"
@@ -2514,9 +2773,9 @@ dependencies = [
 
 [[package]]
 name = "winreg"
-version = "0.7.0"
+version = "0.10.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0120db82e8a1e0b9fb3345a539c478767c0048d842860994d96113d5b667bd69"
+checksum = "80d0f4e272c85def139476380b12f9ac60926689dd2e01d4923222f40580869d"
 dependencies = [
  "winapi",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index d3bec91..fa6c702 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -30,30 +30,26 @@ path = "benches/md_parsing.rs"
 harness = false
 
 [dependencies]
-thiserror = "1.0"
 clap = "2.33"
+crossterm = { version = "0.20", features = ["event-stream"] }
 directories = "2.0"
-serde = { version = "1.0", features = ["derive"] }
-serde_json = "1.0"
-serde_yaml = "0.8"
-
-reqwest = { version = "0.11", features = ["gzip", "json"] }
-tokio = { version = "1.7", features = ["full"] }
 futures = "0.3"
-rayon = "1.5"
-
-percent-encoding = "2.1"
-scraper = "0.12"
-
 lazy_static = "1.4"
 minimad = "0.8"
-termimad = "0.13"
-
-crossterm = { version = "0.20", features = ["event-stream"] }
+percent-encoding = "2.1"
 pulldown-cmark = { version = "0.8", default-features = false }
-
+rayon = "1.5"
+reqwest = { version = "0.11", features = ["gzip", "json"] }
+scraper = "0.12"
+serde = { version = "1.0", features = ["derive"] }
+serde_json = "1.0"
+serde_yaml = "0.8"
 # temporary to fix https://github.com/Lymia/enumset/issues/17
 syn = "=1.0.57"
+termimad = "0.13"
+thiserror = "1.0"
+tokio = { version = "1.7", features = ["full"] }
+webbrowser = "0.7"
 
 [dependencies.cursive]
 version =  "0.17"
diff --git a/src/main.rs b/src/main.rs
index c2e8f51..e732d5a 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -13,17 +13,16 @@ use tokio::task;
 
 use config::Config;
 use error::{Error, Result};
-use stackexchange::{LocalStorage, Question, Search};
+use stackexchange::{LocalStorage, Search};
 use term::Term;
-use tui::markdown::Markdown;
 
 fn main() -> Result<()> {
     // Tokio runtime
     Runtime::new()?
         .block_on(run())
-        .map(|qs| {
+        .map(|app| {
             // Run TUI
-            qs.map(|(qs, cfg)| tui::run(qs, cfg));
+            app.map(tui::App::run);
         })
         .or_else(|e: Error| {
             // Handle errors
@@ -33,7 +32,7 @@ fn main() -> Result<()> {
 
 /// Runs the CLI and, if the user wishes to enter the TUI, returns
 /// question/answer data
-async fn run() -> Result<Option<(Vec<Question<Markdown>>, Config)>> {
+async fn run() -> Result<Option<tui::App>> {
     // Get CLI opts
     let opts = cli::get_opts()?;
     let config = opts.config;
@@ -88,18 +87,17 @@ async fn run() -> Result<Option<(Vec<Question<Markdown>>, Config)>> {
             term.print("\nPress **[SPACE]** to see more results, or any other key to exit");
 
             // Kick off the rest of the search in the background
-            let qs = task::spawn(async move { search.search_md().await });
+            let app = task::spawn(async move { tui::App::from_search(search).await });
             if !Term::wait_for_char(' ')? {
                 return Ok(None);
             }
 
             // Get the rest of the questions
-            return Ok(Some((Term::wrap_spinner(qs).await?.unwrap()?, config)));
+            return Ok(Some(Term::wrap_spinner(app).await?.unwrap()?));
         } else {
-            return Ok(Some((
-                Term::wrap_spinner(search.search_md()).await??,
-                config,
-            )));
+            return Ok(Some(
+                Term::wrap_spinner(tui::App::from_search(search)).await??,
+            ));
         }
     }
     Ok(None)
diff --git a/src/stackexchange/api.rs b/src/stackexchange/api.rs
index cf326f2..57f8f88 100644
--- a/src/stackexchange/api.rs
+++ b/src/stackexchange/api.rs
@@ -21,12 +21,14 @@ const SE_FILTER: &str = ".DND5X2VHHUH8HyJzpjo)5NvdHI3w6auG";
 /// Pagesize when fetching all SE sites. Should be good for many years...
 const SE_SITES_PAGESIZE: u16 = 10000;
 
+pub type Id = u32;
+
 /// Represents a StackExchange answer with a custom selection of fields from
 /// the [StackExchange docs](https://api.stackexchange.com/docs/types/answer)
 #[derive(Clone, Deserialize, Debug)]
 pub struct Answer<S> {
     #[serde(rename = "answer_id")]
-    pub id: u32,
+    pub id: Id,
     pub score: i32,
     #[serde(rename = "body_markdown")]
     pub body: S,
@@ -35,19 +37,21 @@ pub struct Answer<S> {
 
 /// Represents a StackExchange question with a custom selection of fields from
 /// the [StackExchange docs](https://api.stackexchange.com/docs/types/question)
-// TODO container over answers should be generic iterator
 #[derive(Clone, Deserialize, Debug)]
 pub struct Question<S> {
     #[serde(rename = "question_id")]
-    pub id: u32,
+    pub id: Id,
     pub score: i32,
-    #[serde(default = "Vec::new")]
     // N.B. empty vector default needed because questions endpoint cannot filter
     // answers >= 1
+    #[serde(default = "Vec::new")]
     pub answers: Vec<Answer<S>>,
     pub title: String,
     #[serde(rename = "body_markdown")]
     pub body: S,
+    // This is the only field that doesn't actually come back from SE; we add
+    // this site code to which the question belongs
+    pub site: Option<String>,
 }
 
 /// Internal struct that represents the boilerplate response wrapper from SE API.
@@ -98,7 +102,7 @@ impl Api {
             .into_iter()
             .filter(|q| !q.answers.is_empty())
             .collect();
-        Ok(Self::preprocess(qs))
+        Ok(Self::preprocess(site, qs))
     }
 
     /// Search against the SE site's /search/advanced endpoint with a given query.
@@ -126,7 +130,7 @@ impl Api {
             .json::<ResponseWrapper<Question<String>>>()
             .await?
             .items;
-        Ok(Self::preprocess(qs))
+        Ok(Self::preprocess(site, qs))
     }
 
     pub async fn sites(&self) -> Result<Vec<Site>> {
@@ -159,9 +163,10 @@ impl Api {
     }
 
     /// Sorts answers by score
+    /// Add the site code to which the question belongs
     /// Preprocess SE markdown to "cmark" markdown (or something closer to it)
     /// This markdown preprocess _always_ happens.
-    fn preprocess(qs: Vec<Question<String>>) -> Vec<Question<String>> {
+    fn preprocess(site: &str, qs: Vec<Question<String>>) -> Vec<Question<String>> {
         qs.into_par_iter()
             .map(|q| {
                 let mut answers = q.answers;
@@ -175,6 +180,7 @@ impl Api {
                     .collect();
                 Question {
                     answers,
+                    site: Some(site.to_string()),
                     body: markdown::preprocess(q.body),
                     ..q
                 }
diff --git a/src/stackexchange/mod.rs b/src/stackexchange/mod.rs
index b0e1345..387ae54 100644
--- a/src/stackexchange/mod.rs
+++ b/src/stackexchange/mod.rs
@@ -4,6 +4,6 @@ mod search;
 // Exposed for benchmarking
 pub mod scraper;
 
-pub use api::{Answer, Question};
+pub use api::{Answer, Id, Question};
 pub use local_storage::LocalStorage;
 pub use search::Search;
diff --git a/src/stackexchange/search.rs b/src/stackexchange/search.rs
index 1357c80..d705867 100644
--- a/src/stackexchange/search.rs
+++ b/src/stackexchange/search.rs
@@ -26,10 +26,10 @@ const USER_AGENT: &str =
 // TODO this really needs a better name...
 #[derive(Clone)]
 pub struct Search {
-    api: Api,
-    config: Config,
-    query: String,
-    sites: HashMap<String, String>,
+    pub api: Api,
+    pub config: Config,
+    pub query: String,
+    pub sites: HashMap<String, String>,
 }
 
 impl Search {
@@ -190,6 +190,7 @@ fn parse_markdown(qs: Vec<Question<String>>) -> Vec<Question<Markdown>> {
                 id: q.id,
                 score: q.score,
                 title: q.title,
+                site: q.site,
             }
         })
         .collect::<Vec<_>>()
diff --git a/src/tui/app.rs b/src/tui/app.rs
index 6658f16..3c2fedf 100644
--- a/src/tui/app.rs
+++ b/src/tui/app.rs
@@ -20,134 +20,181 @@ use super::views::{
 };
 use crate::config::Config;
 use crate::error::Result;
-use crate::stackexchange::{Answer, Question};
+use crate::stackexchange::{Answer, Id, Question, Search};
 
 pub const NAME_HELP_VIEW: &str = "help_view";
 
-// TODO an Arc<Mutex> app state that gets auto updated with new selections would
-// be convenient
-
-pub fn run(qs: Vec<Question<Markdown>>, cfg: Config) -> Result<()> {
-    let mut siv = cursive::default();
-    siv.load_theme_file(Config::theme_file_path()?).unwrap(); // TODO dont unwrap
-
-    let question_map: HashMap<u32, Question<Markdown>> =
-        qs.clone().into_iter().map(|q| (q.id, q)).collect();
-    let question_map = Arc::new(question_map);
-    let answer_map: HashMap<u32, Answer<Markdown>> = qs
-        .clone()
-        .into_iter()
-        .flat_map(|q| q.answers.into_iter().map(|a| (a.id, a)))
-        .collect();
-    let answer_map = Arc::new(answer_map);
-
-    let question_view = MdView::new(Name::QuestionView);
-    let answer_view = MdView::new(Name::AnswerView);
-
-    let question_list_view = ListView::new_with_items(
-        Name::QuestionList,
-        qs.into_iter().map(|q| (preview_question(&q), q.id)),
-        move |s, qid| question_selected_callback(question_map.clone(), s, *qid),
-    );
-
-    let answer_list_view = ListView::new(Name::AnswerList, move |s, aid| {
-        let a = answer_map.get(aid).unwrap();
-        s.call_on_name(NAME_ANSWER_VIEW, |v: &mut MdView| v.set_content(&a.body));
-    });
-
-    siv.add_layer(
-        LayoutView::new(
-            1,
-            question_list_view,
-            question_view,
-            answer_list_view,
-            answer_view,
-        )
-        .add_vim_bindings(),
-    );
-
-    let cb = siv.call_on_name(NAME_QUESTION_LIST, |v: &mut ListView| v.select(0));
-    if let Some(cb) = cb {
-        cb(&mut siv)
+pub struct App {
+    questions: HashMap<Id, Question<Markdown>>,
+    answers: HashMap<Id, Answer<Markdown>>,
+    config: Config,
+    sites: HashMap<String, String>,
+}
+
+impl App {
+    pub async fn from_search(search: Search) -> Result<Self> {
+        let qs = search.search_md().await?;
+        let questions: HashMap<u32, Question<Markdown>> =
+            qs.clone().into_iter().map(|q| (q.id, q)).collect();
+        let answers: HashMap<u32, Answer<Markdown>> = qs
+            .into_iter()
+            .flat_map(|q| q.answers.into_iter().map(|a| (a.id, a)))
+            .collect();
+        Ok(Self {
+            config: search.config,
+            sites: search.sites,
+            questions,
+            answers,
+        })
     }
 
-    // Help / View keymappings
-    siv.add_global_callback('?', |s| {
-        if let Some(pos) = s.screen_mut().find_layer_from_name(NAME_HELP_VIEW) {
-            s.screen_mut().remove_layer(pos);
-        } else {
-            s.add_layer(help());
-        }
-    });
-
-    // Reload theme
-    siv.add_global_callback(Event::CtrlChar('r'), |s| {
-        s.load_theme_file(Config::theme_file_path().unwrap())
-            .unwrap()
-    });
-
-    // Copy contents to sys clipboard
-    siv.add_global_callback('y', move |s| {
-        let mut v: ViewRef<LayoutView> = s
-            .find_name(NAME_FULL_LAYOUT)
-            .expect("bug: layout view should exist");
-        let md = v.get_focused_content();
-        if let Some(mut copy_cmd) = cfg.get_copy_cmd() {
-            let res = (|| {
-                let mut child = copy_cmd.spawn().map_err(|e| {
-                    if e.kind() == io::ErrorKind::NotFound {
-                        io::Error::new(
-                            io::ErrorKind::Other,
-                            "couldn't exec copy cmd; you may need to configure it manually",
-                        )
-                    } else {
-                        e
-                    }
-                })?;
-                let mut stdin = child.stdin.take().ok_or_else(|| {
-                    io::Error::new(io::ErrorKind::Other, "couldn't get stdin of copy cmd")
-                })?;
-                stdin.write_all(md.source().as_bytes())?;
-                Ok("copied to clipboard!".to_string())
-            })();
-            temp_feedback_msg(s, res);
-        }
-    });
+    // TODO a <Mutex> app field that gets auto updated with new selections would be convenient
+    pub fn run(self) -> Result<()> {
+        // The underlying fields of self are just static data that we
+        // borrow from various places and callbacks; wrap in Arc to just have
+        // one allocation that gets referenced from wherever.
+        let arc = Arc::new(self);
 
-    siv.add_global_callback(Event::Key(Key::Esc), |s| {
-        if let Some(pos) = s.screen_mut().find_layer_from_name(NAME_HELP_VIEW) {
-            s.screen_mut().remove_layer(pos);
-        }
-        if let Some(pos) = s.screen_mut().find_layer_from_name(NAME_TEMP_MSG) {
-            s.screen_mut().remove_layer(pos);
+        let mut siv = cursive::default();
+        siv.load_theme_file(Config::theme_file_path()?).unwrap(); // TODO dont unwrap
+
+        let question_view = MdView::new(Name::QuestionView);
+        let answer_view = MdView::new(Name::AnswerView);
+
+        let arc2 = arc.clone();
+        let question_list_view = ListView::new_with_items(
+            Name::QuestionList,
+            arc.questions
+                .clone()
+                .into_values()
+                .map(|q| (preview_question(&q), q.id)),
+            move |s, qid| arc2.question_selected_callback(s, *qid),
+        );
+
+        let arc2 = arc.clone();
+        let answer_list_view = ListView::new(Name::AnswerList, move |s, aid| {
+            let a = arc2.answers.get(aid).unwrap();
+            s.call_on_name(NAME_ANSWER_VIEW, |v: &mut MdView| v.set_content(&a.body));
+        });
+
+        siv.add_layer(
+            LayoutView::new(
+                1,
+                question_list_view,
+                question_view,
+                answer_list_view,
+                answer_view,
+            )
+            .add_vim_bindings(),
+        );
+
+        let cb = siv.call_on_name(NAME_QUESTION_LIST, |v: &mut ListView| v.select(0));
+        if let Some(cb) = cb {
+            cb(&mut siv)
         }
-    });
 
-    // Run the app
-    siv.run();
-    Ok(())
-}
+        // Help / View keymappings
+        siv.add_global_callback('?', |s| {
+            if let Some(pos) = s.screen_mut().find_layer_from_name(NAME_HELP_VIEW) {
+                s.screen_mut().remove_layer(pos);
+            } else {
+                s.add_layer(help());
+            }
+        });
+
+        // Reload theme
+        siv.add_global_callback(Event::CtrlChar('r'), |s| {
+            s.load_theme_file(Config::theme_file_path().unwrap())
+                .unwrap()
+        });
+
+        // Copy contents to sys clipboard
+        let arc2 = arc.clone();
+        siv.add_global_callback('y', move |s| {
+            let mut v: ViewRef<LayoutView> = s
+                .find_name(NAME_FULL_LAYOUT)
+                .expect("bug: layout view should exist");
+            let md = v.get_focused_content();
+            if let Some(mut copy_cmd) = arc2.config.get_copy_cmd() {
+                let res = (|| {
+                    let mut child = copy_cmd.spawn().map_err(|e| {
+                        if e.kind() == io::ErrorKind::NotFound {
+                            io::Error::new(
+                                io::ErrorKind::Other,
+                                "couldn't exec copy cmd; you may need to configure it manually",
+                            )
+                        } else {
+                            e
+                        }
+                    })?;
+                    let mut stdin = child.stdin.take().ok_or_else(|| {
+                        io::Error::new(io::ErrorKind::Other, "couldn't get stdin of copy cmd")
+                    })?;
+                    stdin.write_all(md.source().as_bytes())?;
+                    Ok("copied to clipboard!".to_string())
+                })();
+                temp_feedback_msg(s, res);
+            }
+        });
+
+        // Open in browser
+        let arc2 = arc;
+        siv.add_global_callback('o', move |s| {
+            let mut v: ViewRef<LayoutView> = s
+                .find_name(NAME_FULL_LAYOUT)
+                .expect("bug: layout view should exist");
+            if let Some((qid, aid)) = v.get_focused_ids() {
+                let res = webbrowser::open(&arc2.mk_url("stackoverflow".to_string(), qid, aid))
+                    .map(|_| "opened stackexchange in the browser!".to_string());
+                dbg!(&res);
+                temp_feedback_msg(s, res);
+            }
+        });
+
+        siv.add_global_callback(Event::Key(Key::Esc), |s| {
+            if let Some(pos) = s.screen_mut().find_layer_from_name(NAME_HELP_VIEW) {
+                s.screen_mut().remove_layer(pos);
+            }
+            if let Some(pos) = s.screen_mut().find_layer_from_name(NAME_TEMP_MSG) {
+                s.screen_mut().remove_layer(pos);
+            }
+        });
 
-fn question_selected_callback(
-    question_map: Arc<HashMap<u32, Question<Markdown>>>,
-    s: &mut Cursive,
-    qid: u32,
-) {
-    let q = question_map.get(&qid).unwrap();
-    let body = &q.body;
-    let XY { x, y: _y } = s.screen_size();
-    // Update question view
-    s.call_on_name(NAME_QUESTION_VIEW, |v: &mut MdView| {
-        v.set_content(body);
-    })
-    .expect("Panic: setting question view content failed");
-    // Update answer list view
-    let cb = s
-        .call_on_name(NAME_ANSWER_LIST, |v: &mut ListView| {
-            v.reset_with_all(q.answers.iter().map(|a| (preview_answer(x, a), a.id)))
+        // Run the app
+        siv.run();
+        Ok(())
+    }
+
+    fn mk_url(&self, site: String, question_id: Id, answer_id_opt: Option<Id>) -> String {
+        // answer link actually doesn't need question id
+        let site_url = self
+            .sites
+            .get(&site)
+            .expect("we lost track of a site?!")
+            .to_string();
+        match answer_id_opt {
+            Some(answer_id) => format!("https://{site_url}/a/{answer_id}"),
+            None => format!("https://{site_url}/a/{question_id}"),
+        }
+    }
+
+    pub fn question_selected_callback(&self, s: &mut Cursive, qid: u32) {
+        let q = self.questions.get(&qid).unwrap();
+        let body = &q.body;
+        let XY { x, y: _y } = s.screen_size();
+        // Update question view
+        s.call_on_name(NAME_QUESTION_VIEW, |v: &mut MdView| {
+            v.set_content(body);
         })
-        .expect("Panic: setting answer list content failed");
-    cb(s)
+        .expect("Panic: setting question view content failed");
+        // Update answer list view
+        let cb = s
+            .call_on_name(NAME_ANSWER_LIST, |v: &mut ListView| {
+                v.reset_with_all(q.answers.iter().map(|a| (preview_answer(x, a), a.id)))
+            })
+            .expect("Panic: setting answer list content failed");
+        cb(s)
+    }
 }
 
 fn preview_question(q: &Question<Markdown>) -> StyledString {
@@ -201,6 +248,7 @@ pub fn help() -> Dialog {
 **G**:       Scroll To Bottom
 
 ## Misc
+**o**:              Open current q/a in the browser
 **y**:              Copy current q/a to the clipboard
 **q, ZZ, Ctrl<c>**: Exit
 **Ctrl<r>**:        Reload theme
@@ -216,7 +264,7 @@ pub fn help() -> Dialog {
 }
 
 pub fn temp_feedback_msg(siv: &mut Cursive, msg: io::Result<String>) {
-    // TODO semaphore to close existing msg before displaying new one
+    // TODO semaphore to close existing msg before displaying new one?
     let style = if msg.is_ok() {
         Color::Light(BaseColor::Green)
     } else {
diff --git a/src/tui/mod.rs b/src/tui/mod.rs
index 9bdd9da..07b8421 100644
--- a/src/tui/mod.rs
+++ b/src/tui/mod.rs
@@ -2,4 +2,4 @@ mod app;
 pub mod markdown;
 mod views;
 
-pub use app::run;
+pub use app::App;
diff --git a/src/tui/views.rs b/src/tui/views.rs
index 0e7971d..ef96a6a 100644
--- a/src/tui/views.rs
+++ b/src/tui/views.rs
@@ -155,6 +155,10 @@ impl ListView {
         view.with_name(name)
     }
 
+    pub fn get_current_selection(&mut self) -> Option<u32> {
+        self.call_on_inner(|sv| sv.selection().as_deref().copied())
+    }
+
     pub fn reset_with_all<S, I>(&mut self, iter: I) -> Callback
     where
         S: Into<StyledString>,
@@ -399,6 +403,23 @@ impl LayoutView {
             .expect("call on md view failed")
     }
 
+    // There may be no questions and there may be no answers? There should be answers but w/e
+    pub fn get_focused_ids(&mut self) -> Option<(u32, Option<u32>)> {
+        let curr_question = self
+            .view
+            .call_on_name(NAME_QUESTION_LIST, |v: &mut ListView| {
+                v.get_current_selection()
+            })
+            .flatten()?;
+        let curr_answer = self
+            .view
+            .call_on_name(NAME_ANSWER_LIST, |v: &mut ListView| {
+                v.get_current_selection()
+            })
+            .flatten();
+        Some((curr_question, curr_answer))
+    }
+
     fn get_constraints(&self, screen_size: Vec2) -> LayoutViewSizing {
         let heuristic = 1;
         let width = SizeConstraint::Fixed(screen_size.x / 2 - heuristic);