Apologizer is a Telegram bot which allows members of a group chat to apologize to each other via an automated telephone call, which uses text-to-speech to provide a personalized message.
I wanted to experiment with the Telegram bot API/ecosystem and this was the quickest and cutest proof-of-concept I could come up with. I was able to get a bot built and deployed in less than an hour and the documentation and examples found on core.telegram.org were clear, concise and very helpful. I've decommissioned the bot and probably won't ever use it again, but it worked exactly as expected and I'll consider this experiment a success.