Impressive! But sadly closed source is a big limiting factor for me. I've been using the similar `devtools-x` for a couple of years now (https://github.com/fosslife/devtools-x) which hosts a bit of a smaller featureset but is still in active development. Nice work nonetheless!
Author of devtools-x here. Thank you for the support :D. We have 40+ features now (not counting json-to-yaml and yaml-to-json as 2 different tools), feel free to request any specific feature you want on the issue tracker. Will be more than happy to implement it.