The speaker’s general principle for choosing tools is to buy tools to learn from them and build tools in-house to keep using them.

“Which is like you build to learn and you buy to keep. Or sorry, you buy to learn and you build to keep. Yeah, the other way around there. So, so you, you buy to learn and you build to keep, and I think that's generally true here, where in the early days when we were still trying to figure out, like, you know, get our feet under us a little bit, we were, you know, CodeReview as an example.”