unify home-manager configurations of workmac and main laptop

- manually inspected changes of "workmac" branch
- modularised out some config parts into modules

home/scripts/ssh-loop-fc.nix

@@ -0,0 +1,19 @@
+{ pkgs, ... }:
+''
+  ssh-loop () {
+      setopt shwordsplit
+      local hosts=$1
+      local cmd=$2
+
+      for x in $1; do echo $x; ${pkgs.openssh}/bin/ssh  $x.fcio.net -o StrictHostKeyChecking=no -C "$2"; done
+  }
+
+  ssh-loop-parallel () {
+      setopt shwordsplit
+      local hosts=$1
+      local cmd=$2
+
+      for x in $1; do echo $x; ${pkgs.openssh}/bin/ssh  $x.fcio.net -o StrictHostKeyChecking=no -C "$2" 2>&1 | sed -e "s/^/$x: /;" & done
+      wait
+  }
+''