diff --git a/sci b/sci
index 7896fe1b..ad932d30 160000
--- a/sci
+++ b/sci
@@ -1 +1 @@
-Subproject commit 7896fe1bab824e8e07b198c6eaed1ec465ae3baa
+Subproject commit ad932d30aeddf7e18802622a38dc01aaaa54e768
diff --git a/src/babashka/impl/fs.clj b/src/babashka/impl/fs.clj
index ff78d11c..3281a322 100644
--- a/src/babashka/impl/fs.clj
+++ b/src/babashka/impl/fs.clj
@@ -1,93 +1,9 @@
 (ns babashka.impl.fs
   (:require [babashka.fs :as fs]
-            [clojure.string :as str]
             [sci.core :as sci]))
 
-(def fns (sci/create-ns 'babashka.fs nil))
-
 (def current-file (fs/file (fs/absolutize (fs/path "src" *file*))))
 
-;; clojure -X babashka.impl.fs/update-vars
-(defn update-vars [_]
-  (let [output (with-out-str (doseq [k (sort (keys (ns-publics 'babashka.fs)))]
-                                 (println (str "   '" k) (format "(sci/copy-var fs/%s fns)" k))))
-        this-file (slurp current-file)
-        new-file (str/replace this-file #"(?m);; placeholder\n[\s\S]*;; end placeholder"
-                              (str ";; placeholder\n" output "    ;; end placeholder"))]
-    (spit current-file new-file)))
-
 (def fs-namespace
-  {;; placeholder
-   'absolute? (sci/copy-var fs/absolute? fns)
-   'absolutize (sci/copy-var fs/absolutize fns)
-   'canonicalize (sci/copy-var fs/canonicalize fns)
-   'components (sci/copy-var fs/components fns)
-   'copy (sci/copy-var fs/copy fns)
-   'copy-tree (sci/copy-var fs/copy-tree fns)
-   'create-dir (sci/copy-var fs/create-dir fns)
-   'create-dirs (sci/copy-var fs/create-dirs fns)
-   'create-file (sci/copy-var fs/create-file fns)
-   'create-link (sci/copy-var fs/create-link fns)
-   'create-sym-link (sci/copy-var fs/create-sym-link fns)
-   'create-temp-dir (sci/copy-var fs/create-temp-dir fns)
-   'creation-time (sci/copy-var fs/creation-time fns)
-   'delete (sci/copy-var fs/delete fns)
-   'delete-if-exists (sci/copy-var fs/delete-if-exists fns)
-   'delete-on-exit (sci/copy-var fs/delete-on-exit fns)
-   'delete-tree (sci/copy-var fs/delete-tree fns)
-   'directory? (sci/copy-var fs/directory? fns)
-   'ends-with? (sci/copy-var fs/ends-with? fns)
-   'exec-paths (sci/copy-var fs/exec-paths fns)
-   'executable? (sci/copy-var fs/executable? fns)
-   'exists? (sci/copy-var fs/exists? fns)
-   'extension (sci/copy-var fs/extension fns)
-   'file (sci/copy-var fs/file fns)
-   'file-name (sci/copy-var fs/file-name fns)
-   'file-separator (sci/copy-var fs/file-separator fns)
-   'file-time->instant (sci/copy-var fs/file-time->instant fns)
-   'file-time->millis (sci/copy-var fs/file-time->millis fns)
-   'get-attribute (sci/copy-var fs/get-attribute fns)
-   'glob (sci/copy-var fs/glob fns)
-   'hidden? (sci/copy-var fs/hidden? fns)
-   'instant->file-time (sci/copy-var fs/instant->file-time fns)
-   'last-modified-time (sci/copy-var fs/last-modified-time fns)
-   'list-dir (sci/copy-var fs/list-dir fns)
-   'list-dirs (sci/copy-var fs/list-dirs fns)
-   'match (sci/copy-var fs/match fns)
-   'millis->file-time (sci/copy-var fs/millis->file-time fns)
-   'modified-since (sci/copy-var fs/modified-since fns)
-   'move (sci/copy-var fs/move fns)
-   'normalize (sci/copy-var fs/normalize fns)
-   'parent (sci/copy-var fs/parent fns)
-   'path (sci/copy-var fs/path fns)
-   'path-separator (sci/copy-var fs/path-separator fns)
-   'posix->str (sci/copy-var fs/posix->str fns)
-   'posix-file-permissions (sci/copy-var fs/posix-file-permissions fns)
-   'read-all-bytes (sci/copy-var fs/read-all-bytes fns)
-   'read-all-lines (sci/copy-var fs/read-all-lines fns)
-   'read-attributes (sci/copy-var fs/read-attributes fns)
-   'readable? (sci/copy-var fs/readable? fns)
-   'real-path (sci/copy-var fs/real-path fns)
-   'regular-file? (sci/copy-var fs/regular-file? fns)
-   'relative? (sci/copy-var fs/relative? fns)
-   'relativize (sci/copy-var fs/relativize fns)
-   'same-file? (sci/copy-var fs/same-file? fns)
-   'set-attribute (sci/copy-var fs/set-attribute fns)
-   'set-creation-time (sci/copy-var fs/set-creation-time fns)
-   'set-last-modified-time (sci/copy-var fs/set-last-modified-time fns)
-   'set-posix-file-permissions (sci/copy-var fs/set-posix-file-permissions fns)
-   'size (sci/copy-var fs/size fns)
-   'split-ext (sci/copy-var fs/split-ext fns)
-   'split-paths (sci/copy-var fs/split-paths fns)
-   'starts-with? (sci/copy-var fs/starts-with? fns)
-   'str->posix (sci/copy-var fs/str->posix fns)
-   'strip-ext (sci/copy-var fs/strip-ext fns)
-   'sym-link? (sci/copy-var fs/sym-link? fns)
-   'temp-dir (sci/copy-var fs/temp-dir fns)
-   'unzip (sci/copy-var fs/unzip fns)
-   'walk-file-tree (sci/copy-var fs/walk-file-tree fns)
-   'which (sci/copy-var fs/which fns)
-   'with-temp-dir (sci/copy-var fs/with-temp-dir fns)
-   'writable? (sci/copy-var fs/writable? fns)
-    ;; end placeholder
-   })
+  (sci/copy-ns 'babashka.fs (sci/create-ns 'babashka.fs)))
+