Lemmy seems like the right place to ask this. Personally I’ve really enjoyed Gurgle, which is a FOSS Wordle clone app.

  • Home Assistant. If you ever want to do home automation properly, this is the way. Works with pretty much anything—Zigbee, zWave, BT LE, MQTT—while keeping things manufacturer agnostic, local, private and highly responsive (your commands don’t need to go through some server 3000 km away and won’t have ugly 1 second latency as a result).

    DAVx⁵ and Radicale to sync contacts and calendars between devices without snooping middle-men.

    Syncthing to sync any files between devices. Works remotely, too, thanks to Syncthing relays.

    Navidrome for your personal music streaming service.

    Debian, Docker, Docker Compose and Portainer as the backbone to run all your services.

    And many others.

    • One of the best things about HASS is the counterweight it applies to the home automation industry.
      When everyone is trying to lock people in to proprietary systems, the hass community is keen to find alternatives.

      “To use this temperature sensor, you must use our hub and app”
      2 days later: ‘Good news everyone, it’s manchester coding on 433Mhz, and I’ve written a direct integration for rtl_433’

    • Syncthing to sync any files between devices. Works remotely, too, thanks to Syncthing relays.

      Wait, does this mean I don’t need a VPN to sync remotely? That has been the doubt I have had since I heard about such software.