diff --git a/action.js b/action.js
new file mode 100644
index 0000000..35a2dfe
--- /dev/null
+++ b/action.js
@@ -0,0 +1,57 @@
+import { execSync } from "child_process";
+import { readFileSync, mkdirSync, writeFileSync, readdirSync } from "fs";
+
+const libName = process.env.PWD;
+const version = readFileSync("version", { encoding: "utf8" });
+const repoBaseUrl = `${process.env.INPUT_REPO_URL}/${libName}/${version}`;
+const packageJsonUrls = [];
+
+const sendFile = async (path, data) => {
+  await fetch(`${repoBaseUrl}/${path}`, {
+    method: "PUT",
+    headers: {
+      Authorization: `Basic ${process.env.INPUT_REPO_USER}:${process.env.INPUT_REPO_PASS}`,
+    },
+    body: data,
+  });
+};
+
+// Get system utils
+execSync("apt update", { encoding: "utf8" });
+execSync("apt install -y pipx", { encoding: "utf8" });
+execSync("pipx install mpy-cross", { encoding: "utf8" });
+
+// Add base lib file to repo
+await sendFile(`__init__.mpy`, new ArrayBuffer(0));
+
+// Update urls
+packageJsonUrls.push([`${libName}/__init__.mpy`, "__init__.mpy"]);
+
+// Generate module folders/files
+readdirSync(".")
+  .filter((f) => f.slice(-2) == "py")
+  .forEach(async (moduleFile) => {
+    const modName = moduleFile.slice(0, -3);
+    const modInitPath = `${modName}/__init__.mpy`;
+    const modPyPath = `${modName}/${modName}.mpy`;
+
+    // compile mpy file
+    execSync(`pipx run mpy-cross ${moduleFile}`, {
+      encoding: "utf8",
+    });
+
+    // Add module files to repo
+    await sendFile(modInitPath, new ArrayBuffer(0));
+    await sendFile(modPyPath, readFileSync(modPyPath).buffer);
+
+    // Update urls
+    packageJsonUrls.push([`${libName}/${modInitPath}`, modInitPath]);
+    packageJsonUrls.push([`${libName}/${modPyPath}`, modPyPath]);
+  });
+
+// Add package.json to repo
+await sendFile(`package.json`, {
+  urls: packageJsonUrls,
+  deps: [],
+  version: version,
+});
diff --git a/action.sh b/action.sh
deleted file mode 100755
index 8e0f66e..0000000
--- a/action.sh
+++ /dev/null
@@ -1,14 +0,0 @@
-NAME=$(basename "$PWD")
-VER=$(cat version)
-DIR_NAME="$NAME"_"$VER"
-TAR_NAME="$NAME".tar.gz
-echo $INPUT_REPO_URL
-FULL_URL="$INPUT_REPO_URL"/"$NAME"/"$VER"/"$TAR_NAME"
-
-apt update
-apt install -y pipx
-pipx install mpy-cross
-mkdir "$DIR_NAME"
-for f in ./*.py; do pipx run mpy-cross "$f" -o "$DIR_NAME"/$(basename "$f" .py).mpy; done
-tar czf "$TAR_NAME" "$DIR_NAME"
-curl -u "$INPUT_REPO_USER":"$INPUT_REPO_PASS" -X PUT -T "$TAR_NAME" "$FULL_URL"
\ No newline at end of file
diff --git a/action.yaml b/action.yaml
index 3261837..e5d88a5 100644
--- a/action.yaml
+++ b/action.yaml
@@ -9,10 +9,10 @@ inputs:
     description: Password used for authenticating with repo
     required: true
   repo_url:
-    description: Domain for pypi repo
+    description: Domain for package repo
     required: true
 runs:
   using: "composite"
   steps:
-    - run: $GITHUB_ACTION_PATH/action.sh
-      shell: bash
+    - run: $GITHUB_ACTION_PATH/action.js
+      shell: node