- Gitea (git forge)
- Maddy (email)
- Calendso (scheduling)
- Vaultwarden (password manager)
- linx (filesharing)
- Syncthing (file syncing)
- Wireguard (VPN)
- a couple of metasearch engines
I am not mentioning all the tools and services for monitoring and management.
Self hosting is easy for me cause I am managing all of this with NixOS.