I interacted with valve ~3 years ago, I was looking for a job and they were looking for C developers (for proton). I failed the interview, badly imho, I should

I interacted with valve ~3 years ago, I was looking for a job and they were looking for C developers (for proton). I failed the interview, badly imho, I should have brushed up my C more, but even then I wasn't aware of the correct standard for OSS C development . Now I am (thx Vlc for the best 'how to contribute' documentation). Anyway, great experience, didn't feel like a big company, kind enough to explain my mistakes (this show trust imho), I love my current job but I would definitely try to interview again in like 5 years. Definitely felt like a small company though, where the project leader is actually the recruiter. I'm not sure if the issue is the lack of available devs rather than the structure.