setup-util-deno: use deno from apk edge, document snap --classic works

/ref https://github.com/bevry/dorothy/actions/runs/10869014603/job/30159659960
/ref denoland/deno#3711 (comment)

commands/setup-util-deno

@@ -25,6 +25,11 @@
 
 # https://repology.org/project/deno/versions
 
+# Note that for Alpine, Alpine uses musl, whereas Deno only provides gnu builds, as such executing the gnu build on Alpine fails with 127
+# https://github.com/denoland/deno_docker/issues/240 - request for apk package
+# https://github.com/denoland/deno/issues/3711 - request for musl build
+# https://pkgs.alpinelinux.org/packages?name=deno - community build for alpine
+
 function setup_util_deno() (
 	source "$DOROTHY/sources/bash.bash"
 
@@ -35,10 +40,12 @@ function setup_util_deno() (
 
 	# setup
 	# Don't use the official yet setupid [INSTALLER='https://deno.land/install.sh'], unlike setup-util, it ignores XDG and dumps the bin in [$HOME/.deno/bin/deno] with nothing else in [$HOME/.deno] except that bin, making it useless without slow clutter of env modifications
-	# Don't use [SNAP='deno'] as it faces [Permission denied (os error 13)] when runnin on scripts outside the snap: https://github.com/denoland/deno/issues/5816
+	# Don't use [SNAP='deno'] without --classic as it faces [Permission denied (os error 13)] when running on scripts outside the snap: https://github.com/denoland/deno/issues/5816
 	local arch options=(
 		--cli='deno'
 		"$@"
+		APK_REPO='http://dl-cdn.alpinelinux.org/alpine/edge/community'
+		APK='deno'
 		AUR='deno' # ARCH
 		BREW='deno'
 		CARGO='deno'