We just released a free open source web application to send automatic reminders of national holidays through different services (currently email, Slack and webhooks are supported but more are planned). It’s mainly intended for freelance and remote workers, allowing to customize the country holidays and time zones to send the reminders. We created it because we work with customers of different countries of the world and we kept on forgetting to let them know that we had the day off because it was a national holiday.
This is a very simple app and we have a lot of ideas to improve it (more reminder customizations, supporting vacations, etc.). I am really interested in know what the lobste.rs community thinks about the app or our implementation. We will never try to earn money with this, so please give us some feedback about what we could improve it.
You can check it out here: https://holidayping.lambdaclass.com/
Yesterday I posted how we implemented it: https://lobste.rs/s/mgefw9/holiday_ping_how_we_implemented_our_first