It feels like GitHub's shift to these "AI writes code for you while you sleep!" features will appeal to a less technical crowd who lack awareness of the overall source code hosting and CI ecosystem and, combined with their operational incompetence of late (calling it how I see it), will see their dominance as the default source code solution for folks using it to maintain production software projects fade away.
Hopefully the hobbyists are willing to shell out for tokens as much as they expect.
Evernote just didn't click for me either. I felt overwhelmed by its potential (photos, devices, external services), when all I really wanted was to write flat text. The mobile experience on Android was also not ideal for this goal.
I also moved on to using Simplenote with Notational Velocity as a desktop client. By having NV store files in a Dropbox folder, you gain some redundancy and flexibility for editing the notes.
I believe that vim sources env files rather than rc. For example, any aliases placed in my zshenv are available in vim but those in zshrc are not. I would imagine that applies to other shells as well.
I used Vimium while on Chrome, but Vimperator seems to more completely replace default browser behaviors. I also like the ability to add plugins and keep a .vimperatorrc.