There’s official docker image for elixir:1.13.4 based on OTP 25 and you might get away with that?
I found out that OTP 25 added two new methods to get OS provided CA-certs.
When I get on my laptop again I will simply disable HTTPS check in dart-sass library until it gets fixed in its castore dependency - if I understand this issue correctly…
EDIT: either upgrade to OTP 25 or wait for new release of castore if your code (and its dependencies) depend on this CA library.
