Currently, for a Fabric modpack (say, Fabulously Optimized) you have to download and install Fabric manually, otherwise the modpack doesn't work. This seems like something Modrinth either has or should have an API route for (but I asked here (via) anyway). EDIT: You can get it by fetching all the versions of a given project or its search result, the latter not being recommended, which based on the app's function itself, you already do.
Modpacks actually contain this information. However, loader installation is specific to the launcher. I guess I could support the Vanilla launcher specifically for this purpose.
Currently, for a Fabric modpack (say, Fabulously Optimized) you have to download and install Fabric manually, otherwise the modpack doesn't work.
This seems like something Modrinth either has or should have an API route for (but I asked here (via) anyway).EDIT: You can get it by fetching all the versions of a given project or its search result, the latter not being recommended, which based on the app's function itself, you already do.