After https://digitalcora.net released https://github.com/digitalcora/sublime-text-gleam we can now instruct bat https://github.com/sharkdp/bat to display #gleam https://gleam.run syntax:

brew install bat mkdir -p "$(bat --config-dir)/syntaxes" cd "$(bat --config-dir)/syntaxes" git clone https://github.com/digitalcora/sublime-text-gleam bat cache --build

then just run something like bat string.gleam:

DigitalCora.net