diff --git a/.gitignore b/.gitignore
index 6ba888e..c1e6587 100644
--- a/.gitignore
+++ b/.gitignore
@@ -18,3 +18,4 @@ pdbs/
 game_web/
 .venv
 build/
+bin/
diff --git a/builder/builder.odin b/builder/builder.odin
index 2bb7c5d..b02a955 100644
--- a/builder/builder.odin
+++ b/builder/builder.odin
@@ -39,18 +39,22 @@ when ODIN_OS == .Windows {
 	EXE_EXT :: ".exe"
 	DLL_EXT :: ".dll"
 	LIB_PREFIX :: ""
+	EMSCRIPTEN_SHELL_EXT :: ".bat"
 } else when ODIN_OS == .Linux {
 	EXE_EXT :: ".bin"
 	DLL_EXT :: ".so"
 	LIB_PREFIX :: "lib"
+	EMSCRIPTEN_SHELL_EXT :: ""
 } else when ODIN_OS == .Darwin {
 	EXE_EXT :: ".bin"
 	DLL_EXT :: ".dylib"
 	LIB_PREFIX :: "lib"
+	EMSCRIPTEN_SHELL_EXT :: ""
 } else {
 	EXE_EXT :: ""
 	DLL_EXT :: ""
 	LIB_PREFIX :: ""
+	EMSCRIPTEN_SHELL_EXT :: ""
 }
 
 // Returns a list of shared dependencies that have to be copied to out dir
@@ -113,8 +117,8 @@ build_deps :: proc(opts: Options) -> []string {
 		build_cmd := []string{"cmake", "--build", "build", "--config", "MinSizeRel"}
 		if !is_built || force {
 			if opts.variant == .Web {
-				run_cmd(temp_concat({"emcmake.bat"}, prepare_cmd), cwd)
-				run_cmd(temp_concat({"emmake.bat"}, build_cmd), cwd)
+				run_cmd(temp_concat({"emcmake" + EMSCRIPTEN_SHELL_EXT}, prepare_cmd), cwd)
+				run_cmd(temp_concat({"emmake" + EMSCRIPTEN_SHELL_EXT}, build_cmd), cwd)
 			} else {
 				run_cmd(prepare_cmd, cwd)
 				run_cmd(build_cmd, cwd)
@@ -199,11 +203,7 @@ setup_emsdk_env :: proc() {
 		PATH_ENV_DELIMITER :: ":"
 	}
 
-	PATHS :: [3]string {
-		"./libs/emsdk/upstream/bin",
-		"./libs/emsdk/upstream/emscripten",
-		"./libs/emsdk/ninja/git-release_64bit/bin",
-	}
+	PATHS :: [2]string{"./libs/emsdk/upstream/bin", "./libs/emsdk/upstream/emscripten"}
 
 	paths: [len(PATHS)]string
 	for path, i in PATHS {
@@ -213,7 +213,7 @@ setup_emsdk_env :: proc() {
 	set_env(
 		"PATH",
 		strings.join(
-			{paths[0], paths[1], paths[2], os.get_env("PATH", context.temp_allocator)},
+			{paths[0], paths[1], os.get_env("PATH", context.temp_allocator)},
 			PATH_ENV_DELIMITER,
 			context.temp_allocator,
 		),
@@ -258,7 +258,7 @@ main :: proc() {
 
 	switch opts.variant {
 	case .Hot_Reload:
-		setup_bin_dir(opts, "./build/hotreload", shared_dep_paths)
+		setup_bin_dir(opts, "./bin/hotreload", shared_dep_paths)
 
 		is_running := process_exists("game" + EXE_EXT)
 		if !is_running {
@@ -268,7 +268,7 @@ main :: proc() {
 						"odin",
 						"build",
 						"main_hot_reload",
-						"-out:./build/hotreload/game" + EXE_EXT,
+						"-out:./bin/hotreload/game" + EXE_EXT,
 					},
 					debug_flag,
 					tracy_flag,
@@ -286,7 +286,7 @@ main :: proc() {
 					"-define:RAYLIB_SHARED=true",
 					"-define:PHYSFS_SHARED=true",
 					"-build-mode:dll",
-					"-out:./build/hotreload/game_tmp" + DLL_EXT,
+					"-out:./bin/hotreload/game_tmp" + DLL_EXT,
 				},
 				tracy_flag,
 				debug_flag,
@@ -295,17 +295,17 @@ main :: proc() {
 			),
 			"",
 		)
-		rename("./build/hotreload/game_tmp" + DLL_EXT, "./build/hotreload/game" + DLL_EXT)
+		rename("./bin/hotreload/game_tmp" + DLL_EXT, "./bin/hotreload/game" + DLL_EXT)
 
 		if !is_running && opts.run {
-			run_cmd({"./build/hotreload/game" + EXE_EXT}, "")
+			run_cmd({"./bin/hotreload/game" + EXE_EXT}, "")
 		}
 	case .Desktop:
-		setup_bin_dir(opts, "./build/desktop", shared_dep_paths)
+		setup_bin_dir(opts, "./bin/desktop", shared_dep_paths)
 
 		cmd := slice.concatenate(
 			[][]string {
-				[]string{"odin", "build", "main_release", "-out:./build/desktop/game" + EXE_EXT},
+				[]string{"odin", "build", "main_release", "-out:./bin/desktop/game" + EXE_EXT},
 				tracy_flag,
 				debug_flag,
 				optimize_flag,
@@ -315,8 +315,8 @@ main :: proc() {
 		)
 		run_cmd(cmd, "")
 	case .Web:
-		remove_all("./build/web")
-		mkdir_all("./build/web")
+		remove_all("./bin/web")
+		mkdir_all("./bin/web")
 
 		odin_root := run_cmd({"odin", "root"}, "")
 
@@ -328,7 +328,7 @@ main :: proc() {
 					"main_web",
 					"-target:js_wasm32",
 					"-build-mode:obj",
-					"-out:build/web/game",
+					"-out:bin/web/game",
 				},
 				COMMON_FLAGS,
 				debug_flag,
@@ -339,11 +339,11 @@ main :: proc() {
 
 		run_cmd(
 			{
-				"emcc.bat",
+				"emcc" + EMSCRIPTEN_SHELL_EXT,
 				"-g",
 				"-o",
-				"build/web/index.html",
-				"build/web/game.wasm.o",
+				"bin/web/index.html",
+				"bin/web/game.wasm.o",
 				"libs/raylib/zig-out-static/lib/libraylib.a",
 				"libs/physfs/build/libphysfs.a",
 				"-sUSE_GLFW=3",
@@ -358,14 +358,14 @@ main :: proc() {
 			},
 			"",
 		)
-		remove_file("./build/web/game.wasm.o")
+		remove_file("./bin/web/game.wasm.o")
 
 		copy_file(
 			filepath.join(
 				{odin_root, "core", "sys", "wasm", "js", "odin.js"},
 				context.temp_allocator,
 			),
-			"./build/web/odin.js",
+			"./bin/web/odin.js",
 		)
 	}
 }
diff --git a/game/fs.odin b/game/fs.odin
index d401170..f011d84 100644
--- a/game/fs.odin
+++ b/game/fs.odin
@@ -3,7 +3,6 @@ package game
 import "base:runtime"
 import "core:c"
 import "core:log"
-import "core:path/filepath"
 import "core:strings"
 import "libs:physfs"
 import rl "libs:raylib"
@@ -11,6 +10,26 @@ import rl "libs:raylib"
 @(private = "file")
 _ctx: runtime.Context
 
+path_dir :: proc(path: string, num_dirs: int = 1) -> string {
+	when ODIN_OS == .Windows {
+		SEPARATOR :: rune('\\')
+	} else {
+		SEPARATOR :: rune('/')
+	}
+	count := 0
+	#reverse for rune, i in path {
+		if rune == SEPARATOR {
+			count += 1
+
+			if count == num_dirs {
+				return path[0:i]
+			}
+		}
+	}
+
+	return path
+}
+
 init_physfs :: proc(args: []string) {
 	_ctx = context
 
@@ -18,20 +37,17 @@ init_physfs :: proc(args: []string) {
 	physfs.setSaneConfig("serega", "gutter-runner", "zip", 0, 1)
 
 	// For non web builds, binary will live 2 subdirs below main content dir, so add it to search path
-	if args[0] != "." {
-		base_dir := filepath.dir(
-			filepath.dir(filepath.dir(args[0], context.temp_allocator), context.temp_allocator),
-			context.temp_allocator,
-		)
-		abs_base_dir, ok := filepath.abs(base_dir, context.temp_allocator)
-		assert(ok)
-		err := physfs.mount(strings.clone_to_cstring(abs_base_dir, context.temp_allocator), "/", 1)
+	when ODIN_OS != .JS {
+		abs_path, ok := path_abs(args[0], context.temp_allocator)
+    assert(ok)
+		base_dir := path_dir(abs_path, 3)
+		err := physfs.mount(strings.clone_to_cstring(base_dir, context.temp_allocator), "/", 1)
 
 		if err == 0 {
 			log.panicf("physfs: failed to set base dir {0}", physfs.getLastError())
 		}
 
-		log.infof("physfs: added {0} to search path", abs_base_dir)
+		log.infof("physfs: added {0} to search path", base_dir)
 	}
 }
 
diff --git a/game/fs_desktop.odin b/game/fs_desktop.odin
new file mode 100644
index 0000000..99b0b90
--- /dev/null
+++ b/game/fs_desktop.odin
@@ -0,0 +1,8 @@
+#+build !js
+package game
+
+import "core:path/filepath"
+
+path_abs :: proc(path: string, allocator := context.allocator) -> (string, bool) {
+	return filepath.abs(path, allocator)
+}
diff --git a/game/fs_web.odin b/game/fs_web.odin
new file mode 100644
index 0000000..42b9374
--- /dev/null
+++ b/game/fs_web.odin
@@ -0,0 +1,6 @@
+#+build js
+package game
+
+path_abs :: proc(path: string, allocator := context.allocator) -> (string, bool) {
+	return path, true
+}