I use vim for the spell checking and just keep it offline most of the time. It's more for me than anyone else when I want to respond to others about a particular topic.

i use obsidian with the daily notes plugin and write stream of consciousness for about 15 minutes. sometimes i type, other times i use a dictation app.

lately i have been taking my daily notes and running them through a local LLM. i prompt it to “think like a therapist” and ask me follow up questions. this can dig up some interesting insights from time to time.