I wrote a slack bot for a college club that liked to share music recommendations. We only had the free tier of Slack and were losing old recommendations as the

I wrote a slack bot for a college club that liked to share music recommendations. We only had the free tier of Slack and were losing old recommendations as the messages were deleted and there wasn't an easy way to listen to all of them at once. I added a bot so that any spotify link sent to the channel is automatically added to a running playlist I own. I have code running now at work that gets millions of requests a day and I'm not sure it's more "impactful". I'm not sure how many customers would notice or care if it disappeared, but the slack bot broke once and a couple people messaged me pretty quickly to let me know.