proton

It is quite simple to add something similar to your existing setup. Just split your configurations into logical packages and include them from your main. Here is for example my Go "layer": https://github.com/dvcrn/dotfiles/blob/master/vim/lang/go.vi... The top is describing plugins, the middle configuration and the bottom key bindings, including "mode keys" accessible over comma. Also shameless plug to "proton", my atom plugin which tries to do the same thing. https://github.com/dvcrn/proton

Another shameless plug but I'm the author of proton. We are doing something similar and porting a spacemacs inspired way of editing to atom. Check it out https://github.com/dvcrn/proton

I was a happy spacemacs user for a while, but my install kept getting broken by updates. Atom has never just fallen over dead like that. After quite a while it was still mysterious to me how to change simple things or to even trace where certain behavior was implemented. (that can be a problem in Atom too). In short: I didn't have the time. I have a lot of work to do, no time to fiddle. I still miss a few things from spacemacs. helm-swoop mode is awesome. That could be done in Atom. I'd like a <SPACE>-x-y command interface for atom. Proton seeks to achieve that: https://github.com/dvcrn/proton I'd love to be able to handle panes with the agility of Emacs.