Bringing app with .NET dependency to yunohost

Hi, I would like to bring the FediLink app to yunohost. The main dependency is the .NET 9.0 SDK. If I would install it locally on my system I would add the required package signing key to my system and install it via apt. But I can’t find a similar step in the package v2 library. Is there an easy way to do this or do I have to download the package manually as a source, add all dependencies and run it as part of the application install?

You can see how technitium-dns handle this technitium-dns_ynh/manifest.toml at master · YunoHost-Apps/technitium-dns_ynh · GitHub

Thank you!

You could add an apt repo using the extras keys of ressources.apt