• lsof, to find which tunnel I left open so that I can kill them
• ssh config (not a tool, but tuning the ssh config saves so much time!)
• nc, openssl, httpie (and curl, obviously!)

Some commands from zsh:

• Ctrl+X+E to open the command in vi(m) ... so useful to edit multi line commands!
• d + cd -n (with n being an integer) to navigate the folder history.... it can also be done in bash but the commands are much longer!

In the does-not-come-with-the-distro stuff:

• jq , because we always need to work with json!
• fzf to interactive grep anything (history, kill, env, files, ...)
• fd (because the regular find is slower and I always get the arguments wrong!)

• tree
• curl
• grep