Why? We should stop saying others how they want to write/use their code ASAP.
Many established technologies are a total shitstorm. If it is ok to use them, it is ok if somebody wants to use their own compiler.
When it comes down to it, whatever works best and is usually the most simple, non-breaking, used to win out. That decision has been disconnected from the value creators to the value extractors. It is impossible to extract value before value is created.
Additionally, programming is a creative skill no matter how hard they try to make it not one. Creativity means trying new things and new takes on things. People not doing that will harm us long term.
Generally speaking, because that’s very likely to end up being “pushing for rewrites of things that work”, and also a case of not “taking complexity into account when adding features”, and perhaps in some cases “jumping on a new language”, too.
This is an imagined scenario, but the likelihood of someone easily replacing a working compiler in production with something better is pretty low, especially if they’re not a compiler engineer. I’ve watched compiler engineers replace compilers in production and it takes years to get the new one to parity. One person tinkering and learning how to write a compiler almost for sure does not belong in production.
For example, my own "Almost C" compiler[1] is 1137 lines of code. 1137! Can it ever reach "parity" with gcc or even tcc? No! That's specifically not the goal.
Do I benefit strongly for having a otherworldly simpler toolchain? hell yeah.
The key is scope, as always. Established projects have, by virtue of being community projects, too wide a scope.
[1]: https://git.sr.ht/~vdupras/duskos/tree/master/item/fs/doc/co...
Those who do not know history are doomed to repeat it. Or re-re-reinvent Lisp.
There was this anecdote about storm lamp or something. New recruit comes to a camp and sees old guard lighting lamps are turned upside down and lit sideways with a long stick. But he knows better, he tells them and they smirk. First day he lights them the optimal way with a lighter. He's feeling super smug.
But next day he finds the fuse is too short to reach so he takes the long stick...
Few months later, he's a veteran, he's turning lamp upside down using lighter sideways, with a long stick.
And the fresh recruit says he can do it better. And the now old guard smirks.
I'm sure I'm misremembering parts, but can't find the original for the life of me.
If someone would hand me a project, that is full of self invented stuff, for example a PHP project, that invented its own templating or has it's own ORM, I would run. There is laravel, slim or symfony, those are well established and it makes sense to use them. There are so much resources around those frameworks, people who posted about useful things, or packages that add functionality to those. It just doesn't make sense to reinvent the wheel for web frameworks and thousands of packages around those.
Writing software is standing on the shoulders of giants. We should embrace that, and yes one should learn the basics, the underlying mechanisms. But one should make a difference between tinkering around and writing software, that will be in production for years and therefore worked on by different developers.
The JavaScript world shows how to not do things. Every two years I have to learn the new way of building my stuff. It is annoying and a massive waste of resources. Everyone is always reinventing the wheel and it is exhausting. I understand why it is like this, but we as developers could have made it less painful, if we would embrace existing code instead of wanting to write our own.
I’m in games we even rewrite standard libraries (see EASTL) so that they are more fit for purpose.
Of course, it’s your preference. And that is fine. But I don’t think it speaks to the situation in many tech companies.