The OP is likely trying to deliver something like Superhuman ($30/month) - speed...

larrysalibra 8 months ago | parent | context | favorite | on: Show HN: Godspeed is a fast, 100% keyboard oriente...

The OP is likely trying to deliver something like Superhuman ($30/month) - speed and keyboard focused-email - but for todos. I would imagine there is very little overlap between that market and people who use vim or emacs + plugins.