I don't love that either, having all of your stack point to your own domains for how it can be accessed is nice. But in my opinion, it's desirable to be able to build your whole stack from source code. Of course you download external dependencies, but for code you own you should be able to build it from source.

I have seen too many cases of requirements on internal projects that prohibit devs from working because oops the vpn is down now or oops gitlab is under load and the pipeline for your dependency won't finish for the next hour.