mu4e+mbsync+msmtp
mu4e+mbsync+msmtp
The ancestral high-protein diet: drinking the tears of your fallen enemies.
The Malazan Book of the Fallen, by Steven Erikson.
I am not an expert, but I see that the Apache license has no copyleft.
Have you heard of Beeper?
I think Matrix has bridges to all these networks, except ActivityPub (it may, I just don’t know).
I have seen many different ways to achieve that in Emacs. Do you have one to recommend (modes, packages)? Do you synchronise calendars with other devices (e.g. smartphone, server)?
https://github.com/spantaleev/matrix-docker-ansible-deploy makes it easy to deploy.
Not sure about the RAM limitation. If Synapse is too heavy, perhaps a different server (Dendrite?) will be light enough.
FairEmail is the best email app I’ve ever used.
qpdf is the best CLI tool that I have used to edit the structure of a PDF. I recommend it if you don’t require a GUI, and do not need to edit the content.
https://pubmed.ncbi.nlm.nih.gov/8262106/