I wanted to build something small and on an app store, as per Rob Walling's stair step recommendation.
I opted to 'scratch my own itch' and create a basic slackbot that can do custom responses depending on the channel. We had needed it for a requests channel to ensure people have a ticket number and a production status channel to stop people attempting to use a bot/command that wasn't enabled for that channel.
It's done now. I spent a lot more time fighting with configurations as I did it on AWS rather than a PAAS and I think it mainly took a lot of time as I've been too busy to spend much time coding during evenings and weekends.
Finally got it out the door but it needs 10 active workspaces before it can be added to the Slack Marketplace. I've added a few posts on Reddit and am up to 2 so here's hoping it gets some more beta users and then I can eventually go-live and charge users after that!
It's at ChannelResponseBot.com if any slack admins are lurking around here!
I think now I've fallen to some very common pieces of Indiehacking advice:
I can't exactly just target every Slack Admin ever!
I don't mind too much, nice to just finally get something out in to the world