diff --git a/scripts/bin/ipynbloc.py b/scripts/bin/ipynbloc.py
new file mode 100755
index 0000000..8041063
--- /dev/null
+++ b/scripts/bin/ipynbloc.py
@@ -0,0 +1,14 @@
+#!/usr/bin/env python
+
+from json import load
+from sys import argv
+
+def loc(nb):
+    cells = load(open(nb))['cells']
+    return sum(len(c['source']) for c in cells if c['cell_type'] == 'code')
+
+def run(ipynb_files):
+    return sum(loc(nb) for nb in ipynb_files)
+
+if __name__ == '__main__':
+    print(run(argv[1:]))
diff --git a/scripts/includes/archlinux.sh b/scripts/includes/archlinux.sh
index bd4e890..22cec65 100644
--- a/scripts/includes/archlinux.sh
+++ b/scripts/includes/archlinux.sh
@@ -4,3 +4,15 @@ if command -v pacman &> /dev/null; then
     alias listunused='pacman -Qdtq'
     alias aurinst='yay -S'
 fi
+
+if [ -f "/etc/arch-release" ]; then
+    # Java paths
+    export JDK8="/usr/lib/jvm/java-8-openjdk/"
+    export JDK11="/usr/lib/jvm/java-11-openjdk/"
+    export JDK17="/usr/lib/jvm/java-17-openjdk/"
+    alias java8="${JDK8}/bin/java"
+    alias java11="${JDK11}/bin/java"
+    alias java17="${JDK17}/bin/java"
+    export JAVA_HOME=${JDK11}
+    export PATH="${JDK11}/bin:$PATH"
+fi
\ No newline at end of file