I got the same issue, i managed to put out the fire, but couldn't open the door
Viewing post in Quantum Love: Synergy Gun jam comments
The lighing is an issue with the WebGL build and we ran out of time to upload a Window build unfortunately. And the door doesn't work because the hitbox got knocked a little to the right of the object, so the door should open if you aim a little to the right. Yeah, it was all really last minute to get this build.