It wasn't that setup related. pc-kombo does not need that many routes that I did spread it over multiple files. I generally do avoid that. I wanted to give the

It wasn't that setup related. pc-kombo does not need that many routes that I did spread it over multiple files. I generally do avoid that. I wanted to give the specific example at first, but did not find the related commits anymore when writing the article, and in the end if it was really related to some behavior change linked to a version change (or x86 vs ARM) it would not be too useful now. It's meant as an example for the rough edges one can encounter. But the essence is that I had some routes defined using regexpressions, probably like the URL definition for a page in the blog (not saying it was exactly this one): get %r{/([0-9]+)/([\w]+)} do |id, title| And I ran into a situation where on my local dev platform this did not trigger when calling a similar looking route, but on the production server it did. I just remember being surprised that the specificity of the regex-evaluation seemed to change.