Some other FOSS apps I use daily:
Aegis - 2FA (https://github.com/beemdevelopment/Aegis)
Breezy Weather - A very good looking weather app (https://github.com/breezy-weather/breezy-weather)
OnlyOffice Documents - MS Office suite replacement (https://github.com/ONLYOFFICE/documents-app-android)
Fossify Calendar (https://github.com/FossifyOrg/Calendar)
Fossify Messages (https://github.com/FossifyOrg/Messages)
Aves - Local gallery with great organization (https://github.com/deckerst/aves)
Termux - Terminal emulator (https://github.com/termux/termux-app/)
Unexpected Keyboard - A unique keyboard that pairs nicely with Termux (https://github.com/Julow/Unexpected-Keyboard)
WG Tunnel - WireGuard client (https://github.com/wgtunnel/wgtunnel)
These are all easily installed through Obtainium: https://obtainium.imranr.dev/
Thanks for the links. I am concerned about supply chain attacks and such with FOSS tools these days. It seems like the easiest attack surface. In my dev opinion it’s not if it’s when. Kinda sucks and I think the adversary is moving faster than the provider. (I have created and maintained public domain software but not currently. Now I’m crapping on the thread sorry. But no one else is sorry for crapping on threads…I need to stop over thinking or maybe just close this tab)
Can't believe I've never heard of Unexpected Keyboard. Installing immediately. Thank you.
Some others that I use:
* NextCloud -- client for personal NextCloud server; this app is used primarily for file sync, with other features accessed with other apps. (https://nextcloud.com/features/?filter=Clients#android-clien...)
* KeePassDX -- password manager, shares DB with KeePassXC on desktop, which is synced via NextCloud. Also functions as a TOTP authenticator. (https://www.keepassdx.com/)
* DAVx5 -- CalDAV and CardDAV client; keeps mobile calendar and contact list synced with private NextCloud server. (https://www.davx5.com/)
* AntennaPod -- excellent FOSS podcatcher. (https://antennapod.org/)
* KDE Connect -- desktop sync tool; allows file/clipboard/keyboard/audio/etc. sharing between phone and a Linux desktop. (https://kdeconnect.kde.org/)
* Kore -- remote control app for a Kodi instance running on your LAN. (https://kodi.wiki/view/Kore)
And I don't see F-Droid itself mentioned -- it's the most popular repository of FOSS software for Android, with an accompanying app: https://f-droid.org.