cell shop env var

internal/engine.cm

@@ -1,4 +1,4 @@
-// Hidden vars (os, actorsym, init, core_path) come from env
+// Hidden vars (os, actorsym, init, shop_path) come from env
 var ACTORDATA = actorsym
 var SYSYM = '__SYSTEM__'
 
@@ -52,21 +52,10 @@ function ends_with(str, suffix) {
 var js = use_embed('js')
 var fd = use_embed('fd')
 
-// Get the shop path from HOME environment
-var home = os.getenv('HOME') || os.getenv('USERPROFILE')
-if (!home) {
-  os.print('Could not determine home directory\n')
-  os.exit(1)
-}
-var shop_path = home + '/.cell'
+// shop_path comes from hidden env (set by cell.c)
 var packages_path = shop_path + '/packages'
 var core_path = packages_path + '/core'
 
-if (!fd.is_dir(core_path)) {
-  os.print('Cell shop not found at ' + shop_path + '. Run "cell install" to set up.\n')
-  os.exit(1)
-}
-
 var use_cache = {}
 use_cache['core/os'] = os