Siyuan. Ive been using it for a while now and find it very effective for my needs. Its gone through quite a few updates since i started using it and became open source in that time. It even has an android version as well which i do have installed on my phone but admittingly rarely use. I prefer writing information on a keyboard generally.
Nope. Im laughing at this meme carrying a smartphone checking my selfhosted linux postfix/dovecot email server.