functionality needed:
- contacts & calendar
  - Radicale
  - sabre/dav
- notes
  - need webdav server for syncing
  - alternatively, write to file and sync with syncthing
- file syncing
  - syncthing
  - for saved games, use symlinks?
- network drive mount
  - webdav
    - apache
    - people say webdav is bad
  - nfs
    - windows 10 enterprise can mount nfs
    - v4 can use user-based auth
    - if nfs, then need solution for outside of lan
      - bring back vpn?
  - samba?
- web file manager
  - droppy
  - filebrowser
- vpn?
  - server to route vpn requests through
- password manager
  - passbolt
  - keepass + syncthing
  - bitwarden

final list:
- sabre/radicale
- syncthing
- nfs/samba
- droppy