Nix watcher

[gauravtiwari]

Remove ./bin/webpack-watcher in favour of webpack-dev-server to make things simple and less confusing 😄

[p0wl]

👍

(it is still possible to use bin/webpack --watch --progress for setups where the webpack-dev-server is not an option)

[gauravtiwari]

@p0wl Yepp, totally ./bin/webpack --watch --progress. The binstub has #{ARGV.join(" ")}