Can't install Alba Braunschweig?

[barthel-eu]

I installed Waste Collection Schedule in HACS. When I try to add the integration in HA, it asks me the service (Germany - Alba Braunschweig), then gives me a long questionaire that is nowhere explained where I looked (see below)?

https://github.com/mampfes/hacs_waste_collection_schedule/blob/2.0.1/doc/ics/alba_bs_de.md gives me the ability to adjust the URL for my address. But it doesn't tell me where to add that code (and why, given the claim that it's a UI-setup?), entering the URL into the form provided in the addition of the integration to my HA, it tells me Alba returned an empty result.
I tried both with (mf-trash-thisyear%5D={%Y} and mf-trash-thisyear%5D=2024 and tried 2024 also in the Year Field (see below)

The form provided in the process to add the integration asks for:

Calendar Title: [prefilled: ICS]
URL: [I entered the modified URL from above link]
File Name: [?]
Offset: [???]
Parameters: [?]
Year Field: [I tried 2024 to no change]
Method: [prefilled: GET]
Regex: [?]
Titel Template: [prefilled: {{date.summary}}
Split At: [?]
Version: [prefilled: 2]
Verify SSL [checked]
Headers [?]

Submit returns the error: The source returned an empty response. Please check the provided arguments and try again.

I would very much appreciate, if there is a step by step howto, and/or some explanation, what information is required in those fields. As it was reported in earlier (closed) posts, https://alba-bs.de/service/abfuhrtermine.html does not return a useful GET-link but immediately tries to download the ICS file ALBA-Entsorgungskalender-2024.ics
IMHO https://github.com/mampfes/hacs_waste_collection_schedule/blob/2.0.1/doc/ics/alba_bs_de.md should provide information on what information must be entered within the process of the UI-driven setup?

As it is, I can't succeed with the very basic setup of Waste Collection Schedule but get stalled in the above form. I also learned, that it is very important to have frequent updates, as there have been ad hoc changes to our schedule, which is why I looked if there is a possibility to add them additionally (to the use of their app) into HA.
Also links to where I'd find that missing information and explanation would be very much welcome!

Thanks a million!!

[5ila5]

alba_bs_de is not a real source but just an alias + some documentation for the ICS source like stated in the first section of the md file.

ALBA Braunschweig is supported by the generic ICS source. For all available configuration options, please refer to the source description.

So you can look in the ICS source for documentation on all the available input fields. But As you can see, alba_bs_de only needs the URL, so you can leave the other fields on their default value (may also be empty)

You can get the Link by clicking on the ICS-Kalender-Datei button and right-click -> copy ULR the URL of the ok button of the popup

You should then like stated in the documentation replace your year with {%Y}

If you add the ICS file with the URL it is fetched daily.

But if you prefer the app API: it looks like the app might be supported by app_abfallplus_de source