Cro – elegant reactive services in Raku

A shiny new project called Cro just strutted onto the scene promising to help people build fast, responsive online services in Raku, the programming language formerly known to many confused onlookers as Perl 6. The pitch is classic developer catnip: make the easy stuff easy, make the hard stuff possible, and do it with elegant tools. There’s even a neat little example that spits out a friendly “Hello” from a web address. Very cute, very polished, very we swear this beta is basically fine energy.

But in true internet fashion, the real action wasn’t the product demo — it was the identity crisis in the comments. The standout reaction was less “wow, cool toolkit” and more “wait, remind me what Raku is again?” One commenter summed up the room perfectly by admitting it took a while to remember that Raku is the follow-on to Perl 6, while Perl 5 is still alive and kicking. And honestly? That one line carries the whole chaotic vibe: part nostalgia, part confusion, part “did this language get a rebrand while I blinked?”

That’s the drama here. Cro may be trying to sell elegance, but the community mood is still tangled up in Raku’s old name, its split from Perl’s past, and the lingering sense that the language’s biggest hurdle might be explaining itself at parties. The joke practically writes itself: before anyone can react to Cro’s “reactive” services, they first have to react to Raku.