What open-source software would you like more people to know about?

https://reddthat.com/post/47032660

Syncthing: Continuous, private, and encrypted file synchronization across multiple devices without using the cloud.
Absolutely LOVE syncthing. I recently had to go on an emergency trip and was glad I set up syncthing on my phone but hated that I didn’t set it up properly on my laptop.
I love syncthing, but never managed to get permissions to work right on any of my android phones. I chalk that up to phone vendor fuckery though.

You should know that there is no longer an official syncthing app and a clone has taken its place. It’s buggy but it works.

Permissions are a bit tricky to set up but I believe the clone app does it correctly by asking for full file browsing permissions.

Just to be clear, there is no official app for Android (and, I assume iPhone). If you are using SyncThing on desktop or laptop computers, there are downloads at the official syncthing.net site. On Linux, it should be available from your distribution.