Solutions for what? Generic “challenges”? And whatever follows in this section doesn’t really seem too related to custom programming languages, other than the PHP reference (but I’m not sure how mentioning that solves anything, or why you would put it into that section).

That part was about how one small decision can snowball into something huge, like PHP, where the guy just wanted an easier way to do something and ended up creating a language that's everywhere today. Sometimes the "harder" path turns out to be the more interesting one. That's the point: don't give up when things get hard. Push through and you don't just solve your actual problem. you may walk away with some real experience, maybe even something bigger than you expected. But don't treat these stories like they're some deep life lesson. I wanted to unpack what expertise means to the dev community, through a couple of stories that tie into it. Drawing a bit of a parallel to today: AI's everywhere now, and sure, it gives us a shortcut but it's also making us less curious and quicker to hand problems off to a machine. IMHO, used to be more fun that way.

Our whole "build your own custom language" thing also happened kind of by accident. We're glad it turned into something that's not just useful for our devs, but actually interesting to the wider dev community too, cause that's for people who like getting to the bottom of kinda mundane things, same as the guy who made the series, our C++ architect.

As for why we call it PVS-Studio's expertise specifically. Developers are basically the core of what we do. They're the ones who actually hold the knowledge behind our analyzer. And a big part of being a static analysis dev is digging deep into a language to find its weird edge cases and bug patterns, that's literally how you build diagnostic rules. So our expertise really comes down to understanding how languages work under the hood. The videos on building your own language were actually made for new hires at first, that was a fun and fast way to get them thinking like we do. And honestly, that's kind of the whole point: these webinars are our expertise. We just figured other devs outside the company might find them just as interesting.

Thanks for the thoughtful comment, genuinely appreciate it. Hope that clarifies things. But if not, pls ask =)