I hacked up a simple Superhuman alternative

simplehuman.email

2 pointsphalgun_g3 comments

Command center and improved keyboard shortcuts for Gmail, with nudges to help you pick up new shortcuts as you use Gmail.

HN - what do you think?

Awesome!! This needs to be on HN Top. Did you put it on Product Hunt?

not yet, still in the process of proving success to at least 100 users before going to Product Hunt.