I use conversations on android as well. I think it's the best app for android. You can ask in the conversations support channel for help, there are very knowledgeable people around:
xmpp:conversations@conference.siacs.eu?join
lemonuri
joined 1 week ago
Snikket is easy to host in a docker container. You would have your own internet messenger for friends and family. Snikket is based on the xmpp protocol thats been around for 20 years, is tried and tested and very lightweight and does take very few resources on your server. things like Nintendo's messenger and WhatsApp are xmpp based).
Consider undervolting cpu and gpu and you will be able to get away with a leaner psu. I always do this and there really is no downside if you overclock the gpu a little to compensate for the undervolting. Your system will run cooler as well often stopping cpu/gpu from throttling down, so with a bit of luck you can even gain performance while saving on power. It depends on the cpu/gpu combo, but you can expect to save around 50 Watts under full load with both components properly undervoltet.
Here's a very good guide for undervolting your gpu under windows, it's meant for nvidia gpus but the process is very similar with amd gpu's and/or under linux.
https://github.com/LunarPSD/NvidiaOverclocking/blob/main/Nvidia%20Overclocking.md