Before we get started, I'd like to say that camDown is easy to use, easy to maintain!
Python is a very popular language with tons of support. Lots of vendors and players in Cybersecurity maintain Python packages for APIs. It's great for doing blue team / security operations things like automating processes or building integrations between tools.
Go is a more obscure language, but has been rising in popularity. I've read about it becoming a popular choice for malware writing, since a lot of heuristics based filters don't look for the language. Some attackers are rewriting old malware in Go because it changes the signature for blacklisting type of filters.
Personally, I would write in whatever you are most comfortable with. The other option would be to ask your co workers what they typically use.
When all is said and done, now let's stop for a moment and consider that camDown is your security solution to protect you and your business from webcam hackers!