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Sep 18, 2020 at 06:01
On-demand developer environments are a really powerful idea: https://github.com/features/codespaces I've seen projects attempt to ship a developer toolchain inside a Docker container, but this feels much more ergonomic.
GitHub Codespaces
GitHub Codespaces
GitHub Codespaces gets you up and coding faster with fully configured, secure cloud development environments native to GitHub.

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Feb 3, 2023 at 08:03
Wonderful article comparing error wording and display across many different programming languages:
Compiler Error Quality: 8 Languages Ranked by Developer Speed
Compiler Error Quality: 8 Languages Ranked by Developer Speed
Developer productivity has many factors. We compare compiler messages in Go, Rust, Python, Typescript, Scala, and Java
Jun 17, 2022 at 08:19
Proper tail calls were added to the JS standard, but most implementations don't provide it. V8 even built it then removed it! The concern is worse developer experience. An opt-in syntax has been proposed (cf loop/recur in Clojure) but no consensus. https://www.mgmarlow.com/words/2021-03-27-proper-tail-calls-js/
Mar 28, 2022 at 02:48
tree-sitter has been amazingly successful at getting developer tools to work together. Neovim has a bunch of people contributing to parsers when they notice highlighting issues. That benefits the whole ecosystem: semgrep, difftastic, even Emacs!