Dutch law also has provisions against DRM circumvention technologies, so if they have proof that you're doing it, you can expect a lawsuit.
They won't find proof if you host the code on a git instance that's only accessible to you, but if you share that server with the internet, you can expect the RIAA (or more likely, their friends over at BREIN) to sue you (after getting your details from your ISP through another lawsuit).
Responding to a DMCA is free, copyright lawsuits are purposely expensive. You'd better have money for a good lawyer or good legal insurance if you plan on sharing your local Gitlab with such code.
One thing I considered is getting myself an instance of a small Gitlab clone with little attack surface and hosting the code on TOR. Ignoring the potential ethical issues, that should provide good defence against legal repercussions from groups like the RIAA and the MPAA. There's always a possibility that you'd get Kim Dotcom'd if your code gets popular enough, though.
You still got your ISP which likely includes some verbiage in the contract about prohibited use (but even if it doesn't, if the law makes it illegal, you and your ISP can be taken to court with it).
