I was sceptical until I saw that they had a fursona. This must be an expert!

Thanks, I hate it.

Have you tried ed?

cat << EOF > file.txt
# [[content here]]
EOF

On a more serious note: Neovim for quick file-edits, doom-emacs as my IDE.

Doom-emacs does most of the stuff you are already using out of the box, is highly configurable and it lets you use vim-keybindings. It’s also free (as in freedom) software!