For people using alacritty and using GHC version 9.6 or higher, but lower than 9.10 here is a script that makes the GHC error numbers in compiler errors clickable. GHC 9.10 uses terminal escape codes to make them clickable so this script is not needed for that version.
open-ghc-error.sh
#!/usr/bin/env bash
xdg-open "https://errors.haskell.org/messages/$1"
alacritty.toml
[hints]
[[hints.enabled]]
command = "xdg-open"
hyperlinks = true
post_processing = true
persist = false
mouse.enabled = true
binding = { key = "O", mods = "Control|Shift" }
regex = "(ipfs:|ipns:|magnet:|mailto:|gemini://|gopher://|https://|http://|news:|file:|git://|ssh:|ftp://)[^\u0000-\u001F\u007F-\u009F<>\"\\s{-}\\^⟨⟩`]+"
[[hints.enabled]]
command = { program = "/home/user/.config/alacritty/open-ghc-error.sh" }
mouse.enabled = true
regex = "GHC-\\d+"
The first hints.enabled is there to not break existing functionality. See the default section at Alacritty
run
chmod +x open-ghc-error.sh