Custom domains are finally working on my side project

Spent the last couple days getting this right: connect your own

domain, verify DNS, get SSL issued automatically, then your short

links go out under your brand instead of the default domain.

Small feature on paper. Felt like a real milestone though — it's

the difference between "urldn.com/abc123" and "link.yourbrand.com/abc123,"

and that's the kind of detail that makes a side project start to

feel like an actual product instead of a demo.

Still building, still finding bugs. Onward.