Nice demo! 
I’m a big fan of Paste too and I moved to it after many years of using ClipMenu. It’s amazing how such a simple application can make such a big difference to productivity. I like that you can also press cmd + shift + v and start typing a few characters to filter the clipboard / saved items.
If you are looking for a friendlier command line, I’d suggest Fish Shell - it works very nicely out of the box and has smart auto completion and lots of other nice little refinements. I prefer it over Zsh. Just as there is OhMyZsh for Zsh, you can try Oh My Fish to make it easier to install extra packages.
Lastly, check out Hyper Term if you haven’t already - it’s like iTerm but written in JS/HTML/CSS 