fix: envrc adjust post std bump; match metal decln to actual deployed

.envrc

@@ -1,11 +1,9 @@
 #! /bin/sh
 
 # power users can choose a different devshell target
-[[ -f .envrc.local ]] && source_env .envrc.local
+[ -f .envrc.local ] && source_env .envrc.local
 DEVSHELL_TARGET=${DEVSHELL_TARGET:-dev}
 
-source_url \
-  "https://raw.githubusercontent.com/divnix/std/main/direnv_lib.sh" \
-  "sha256-gnjtiJpKbz4L4udoK12AvBwL1lo5RqPR9mbLu1zuajw="
-use std cells //automation/devshells:${DEVSHELL_TARGET}
-
+# shellcheck disable=SC1090
+. "$(nix eval --raw .#__std.direnv_lib)"
+use std nix "//automation/devshells:${DEVSHELL_TARGET}"

nix/metal/bitteProfile.nix

@@ -43,9 +43,9 @@ in {
         defaultModules = [(bitte + "/profiles/client.nix")];
 
         eachRegion = attrs: [
-          (attrs // {region = "eu-central-1";})
-          (attrs // {region = "eu-west-1";})
-          (attrs // {region = "us-east-2";})
+          # (attrs // {region = "eu-central-1";})
+          # (attrs // {region = "eu-west-1";})
+          # (attrs // {region = "us-east-2";})
         ];
       in
         lib.listToAttrs