> Two hours of work after 4 years sounds ... perfectly acceptable?

It's really not. I'm in the same situation with a Go + React project I haven't really touched in 3 years. The Go part is just `go build`, it still works after 3 years and I have a build in a fraction of a second. The React project doesn't build anymore at all. I used Parcel 2 at the time, and it turns out it's incompatible with a Mac M1 for some reason, and it's hard to update in my case. I also used Antdesign and some components (icons specifically) apparently disappeared. It should not be so hard.