That looks neat, cheers dankco! I think there is a lot of room for these lightweight text-first systems.
I use a simple homebrewed system for my notes too, https://github.com/d5ve/noop which is just a search/edit loop, where you look for files and add/edit them.
https://github.com/d5ve/noop started out in golang too, but I ended up shelling out for so much stuff anyway, that I rewrote it in bash.