Supporters
Fueled by your coffees.
Every coffee and every message below comes from the community, and each one genuinely keeps this project going.
Buy me a coffeeThank you.
0 coffees and counting
Every coffee and every message below comes from the community, and each one genuinely keeps this project going.
Buy me a coffeeThank you.
0 coffees and counting
I'm Jérôme, 44, the developer behind Helios. After years across the whole stack, backend, frontend, 3D, games, embedded, I wanted to build something that actually matters to me.
A card won't save the planet, I know. But guilt and numbers nobody reads change no one: people change when they can finally see what's happening in their own home. That's the whole point of Helios, make energy visible, tangible, even beautiful, so acting on it stops feeling like a duty and starts feeling obvious.
Helios is free and open source, built by one person in the open.
Helios is an independent community project, not created by, endorsed by, or affiliated with the Open Home Foundation or Home Assistant. Home Assistant and the Home Assistant logo are trademarks of the Open Home Foundation.
ReikanYsora - Jérôme CREMOUX - 2026