I'm certainly not alone in going down that route! Sometimes it can be rewarding though, as you do get something you understand and which suits you completely.

I'm certainly not alone in going down that route! Sometimes it can be rewarding though, as you do get something you understand and which suits you completely. I wrote a (perl-based) blog-compiler for my own site https://blog.steve.fi/ https://blog.steve.fi/ and recently rewrote it in golang to get the advantage of easier installation and faster generation. Generating a thousand blog posts, over five+ years, shouldn't take more than a second. My Perl code used to take 30 seconds to rebuild and upload my site (via rsync) complete with comments, tags, etc. But the new rewrite takes 3 seconds to do the same job. So it was a good rewrite even if I'm not even going to pretend it is a general purpose utility any more.