diff --git a/Cargo.toml b/Cargo.toml
index bd744e9..862dcc6 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -9,7 +9,7 @@ crate-type=["cdylib"]
 [profile.release]
 debug = 0
 codegen-units = 1
-opt-level = "s" #optimize for size
+opt-level = "z" #optimize for size
 lto = true
 
 [dependencies]
diff --git a/build.sh b/build.sh
new file mode 100644
index 0000000..7224c69
--- /dev/null
+++ b/build.sh
@@ -0,0 +1,5 @@
+#!/bin/bash
+set -e
+wasm-pack build --target web --release --no-typescript
+wasm-opt -Oz -o pkg/integral_site_2.wasm pkg/integral_site_bg.wasm
+mv pkg/integral_site_bg_2.wasm pkg/integral_site_bg.wasm
diff --git a/push.sh b/push.sh
index 8b7ff09..e175411 100755
--- a/push.sh
+++ b/push.sh
@@ -1,7 +1,7 @@
 #!/bin/bash
 set -e #kill script if error occurs
 
-wasm-pack build --target web --release --no-typescript
+bash build.sh
 
 rm -fr tmp | true #delete tmp folder if exists
 mkdir tmp tmp/pkg
diff --git a/start-server.sh b/start-server.sh
index 4dac83f..6c1a949 100755
--- a/start-server.sh
+++ b/start-server.sh
@@ -1,8 +1,7 @@
 #!/bin/bash
 set -e
 
-CONFIG=release
-mkdir -p www/pkg
+bash build.sh
 
 rustup target add wasm32-unknown-unknown