diff --git a/build_output/release/StarMod_24041415_esp32dev.bin b/build_output/release/StarMod_24041415_esp32dev.bin
new file mode 100644
index 00000000..d61d5534
Binary files /dev/null and b/build_output/release/StarMod_24041415_esp32dev.bin differ
diff --git a/build_output/release/StarMod_24041415_esp32dev.bin.gz b/build_output/release/StarMod_24041415_esp32dev.bin.gz
new file mode 100644
index 00000000..46f50bf3
Binary files /dev/null and b/build_output/release/StarMod_24041415_esp32dev.bin.gz differ
diff --git a/tools/post_build.py b/tools/post_build.py
index a422693f..d3d340d2 100644
--- a/tools/post_build.py
+++ b/tools/post_build.py
@@ -18,7 +18,13 @@
 print("***************************************************************************************************************************")
 print("")
 
-OUTPUT_DIR = os.path.expanduser("~")+"/Downloads/"
+isGitHub = "runner" not in os.path.expanduser("~") #do not copy in github PlatformIO CI (/home/runner/ is output dir in github)
+
+if isGitHub:
+    OUTPUT_DIR = "build_output{}".format(os.path.sep)
+else:
+    OUTPUT_DIR = "{}{}Downloads{}".format(os.path.expanduser("~"), os.path.sep, os.path.sep)
+
 
 def _get_cpp_define_value(env, define):
     define_list = [item[-1] for item in env["CPPDEFINES"] if item[0] == define]
@@ -28,40 +34,53 @@ def _get_cpp_define_value(env, define):
 
     return None
 
+def _create_dirs(dirs=["firmware", "map"]):
+    # check if output directories exist and create if necessary
+    if not os.path.isdir(OUTPUT_DIR):
+        os.mkdir(OUTPUT_DIR)
+
+    for d in dirs:
+        if not os.path.isdir("{}{}".format(OUTPUT_DIR, d)):
+            os.mkdir("{}{}".format(OUTPUT_DIR, d))
+
 def bin_rename_copy(source, target, env):
-    if "runner" not in OUTPUT_DIR: #do not copy in github PlatformIO CI (/home/runner/ is output dir in github)
-        app = _get_cpp_define_value(env, "APP")
-        version = _get_cpp_define_value(env, "VERSION")
-        pioenv = env["PIOENV"]
+    app = _get_cpp_define_value(env, "APP")
+    version = _get_cpp_define_value(env, "VERSION")
+    pioenv = env["PIOENV"]
 
+    if isGitHub:
+        _create_dirs() #creates firmware and map
+        _create_dirs(["release"])
         # create string with location and file names based on pioenv
+        map_file = "{}map{}{}_{}_{}.map".format(OUTPUT_DIR, os.path.sep, app, version, pioenv)
+        bin_file = "{}release{}{}_{}_{}.bin".format(OUTPUT_DIR, os.path.sep, app, version, pioenv)
+    else:
         map_file = "{}{}_{}_{}.map".format(OUTPUT_DIR, app, version, pioenv)
         bin_file = "{}{}_{}_{}.bin".format(OUTPUT_DIR, app, version, pioenv)
-        gzip_file = "{}{}_{}_{}.bin.gz".format(OUTPUT_DIR, app, version, pioenv)
 
+    # check if new target files exist and remove if necessary
+    for f in [map_file, bin_file]:
+        if os.path.isfile(f):
+            os.remove(f)
 
-        # check if new target files exist and remove if necessary
-        for f in [map_file, bin_file]:
-            if os.path.isfile(f):
-                os.remove(f)
-
-        # copy firmware.bin to bin_file
-        shutil.copy(str(target[0]), bin_file)
-        print("  created " + bin_file)
+    # copy firmware.bin to bin_file
+    shutil.copy(str(target[0]), bin_file)
+    print("  created " + bin_file)
 
-        # copy firmware.map to map_file
-        if os.path.isfile("firmware.map"):
-            shutil.move("firmware.map", map_file)
+    # copy firmware.map to map_file
+    if os.path.isfile("firmware.map"):
+        shutil.move("firmware.map", map_file)
 
-        # do not create zip version (yet)
-
-        # # check if new target files exist and remove if necessary
-        # if os.path.isfile(gzip_file): os.remove(gzip_file)
+    # github needs zips (I think)
+    if isGitHub:
+        gzip_file = "{}release{}{}_{}_{}.bin.gz".format(OUTPUT_DIR, os.path.sep, app, version, pioenv)
+        # check if new target files exist and remove if necessary
+        if os.path.isfile(gzip_file): os.remove(gzip_file)
 
-        # # write gzip firmware file
-        # with open(bin_file,"rb") as fp:
-        #     with gzip.open(gzip_file, "wb", compresslevel = 9) as f:
-        #         shutil.copyfileobj(fp, f)
-        #         print("  created " + gzip_file)
+        # write gzip firmware file
+        with open(bin_file,"rb") as fp:
+            with gzip.open(gzip_file, "wb", compresslevel = 9) as f:
+                shutil.copyfileobj(fp, f)
+                print("  created " + gzip_file)
 
 env.AddPostAction("$BUILD_DIR/${PROGNAME}.bin", [bin_rename_copy])