- Bitwarden: Been great for sharing passwords and other secrets. We moved to it from LastPass, never tried 1Password, which seems to have a lot of proponents here
- Syncthing, Restic, Backblaze B2: Syncs photos and other files from devices to a NAS, then Restic to create backups locally and on Backblaze B2. For the in-laws and others, I make sure they're backed up using Google Photos or Apple iCloud
- Jellyfin: Streaming our own movies and shows.
- Tailscale: Connect to the home network from anywhere
- Caddy server: Reverse proxy in front of the services like Jellyfin
- Paperless-NGX: Document repository that's hooked up to the scanner and email accounts to keep things organized.
There's a few other ones that get some use, but we use the above almost daily.