Some very nice and lightweight applications I use daily:
Meld
Meld - Meld is a visual diff and merge tool targeted at developers. Meld helps you compare files, directories, and version controlled projects. It provides two- and three-way comparison of both files and directories, and has support for many popular version control systems.
Meld helps you review code changes and understand patches. It might even help you to figure out what is going on in that merge you keep avoiding.
yay -S meld
Will be included soon by default, as mb-reset script will use it.
notify-send.sh
notify-send.sh is a drop-in replacement for notify-send (from libnotify) with ability to update and close existing notifications.
Available in Mabox repository - will come preinstalled with Mabox 21.06 Geralt
yay -S notify-send.sh
Double Commander
Double Commander is a free cross platform open source file manager with two panels side by side. It is inspired by Total Commander and features some new ideas.
Typora looks nice
Recently I came across ShellPiper - very good tool to play/learn things like: awk, sed, grep, find, cut, sort, uniq and so on.
ShellPiper - The Piping Editor
ShellPiper is an editor for writing long pipe one-liners in the shell. Instead of tweaking a long pipe chain in the terminal, use ShellPiper to create and tweak it with ease (and caching!).