You can go a really long way in elisp without ever writing a major mode. It's hard to find a language which doesn't have one already!
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When writing long-lived programs (daemons etc) in Rust, I find myself asking *where* I should put data.
In a GC'd language it's just "I have a string" but Rust forces me to find somewhere to put it.
You do get a performance benefit for this work though.
I hear people say that Go is often hard to search online (hence sometimes "Golang"), but the vast majority of language names are common words. Names with punctuation (C++, C#) are hard too.
Is this a big problem in practice? "Perl" isn't a dictionary word, but it's an exception.
I've been writing docs for different programming language operators (+, *, == and so on). Each one gets a separate web page.
I've suddenly realised that / is much harder! docs/+ and docs/== is fine, but docs// just doesn't work as a URL in a static site.
Any ideas?