A Linuxserver Docker mod that installs the official FreshRSS extensions from their central repository.
Add ghcr.io/mentalfs/linuxserver-mods:freshrss-extensions to your DOCKER_MODS environment variable, for example DOCKER_MODS=ghcr.io/mentalfs/linuxserver-mods:freshrss-extensions. You can add multiple mods by using | as delimiter.
On startup the extensions will be pulled or updated from git. They won't be updated until the next restart, which will most likely happen regularly anyway.