This is an automated archive made by the Lemmit Bot.
The original was posted on /r/opensource by /u/ReporterCalm6238 on 2026-06-30 14:40:23+00:00.
I wanted to share a small civic project I’ve been working on: Make Vienna Cool.
My city, Vienna, is getting unbearably hot in summer. Last Sunday it was 40 degree Celsius. And to make it worse, many buildings don’t have AC, including my apartment. What I do in these cases is simply going to some public spaces having AC and spending some hours there. This is how I got the idea for my project.
It’s an open-source, mobile-friendly map that helps people in Vienna find places to cool down during hot days and heat waves. The map includes:
- public indoor places with AC where to rest, seat, have a drink or even work
- public drinking water fountains
- bathing and water refresh spots
- public toilets
The project combines official City of Vienna open data, OpenStreetMap data, and community contributions into one tool for heat safety.
Repo: github.com/tommasodesantis/Make_Vienna_Cool
Hosted version: makevienna.cool
You might wonder, can’t I find these places on Google Maps? Hardly so. Google Maps doesn’t offer an AC filter and also doesn’t tell you if you can stay in a place without consuming, if there are tables, seating, sockets, WiFI, etc. Also, in my experience, Maps is pretty bad to find fountains, toilets and public swim places.
Curious to learn what you think, any feedback is welcome!