It sounds like you want fast-sequence-map (or do/sequence, more generally).

Hadn’t noticed fast-sequence before.

can we just update sequence-map to do that too?

does running raco pkg install --name "mypkg" --batch --auto --link "." while in the directory containing mypkg fail for anyone else?

it seems like "." doesn’t work as a package source for some reason

(note that relative paths like "./foo" work just fine)

Just noting that such things are terrible names. Like anyone would choose slow-sequence-map instead? And someday there will be faster-sequence-map, and it becomes obnoxious.

If there are trade-offs being made, that should be obvious in the function name, like parallelized-sequence-map, which obviously needs to contain elements that are thread safe, but can run faster.

My friend Strawberry is wonderful and successfully hooked Resyntax up to a GitHub action that automatically comments on pull requests.

How to set this up?

Hasn’t been merged yet, making a few tweaks still. But once it has, setup requires copying this github actions workflow into your repository https://github.com/jackfirth/racket-package-resyntax-action/blob/5cbf50bf19c07831ce63c01b69456e3414d98778/.github/workflows/resyntax.yml

That screenshot doesn’t show it, but you can also commit the suggestions it makes directly from the web UI, so applying Resyntax’s suggestions is just a button press away. This image shows it better: