diff --git a/README.md b/README.md
index 4c0137b..23653d9 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,7 @@
 ## 🚀 One-Command Install
 
 ```bash
-sudo bash -c "$(curl -fsSL https://git.lohmar.co.uk/cclohmar/ReceiptNext/raw/branch/main/install.sh)"
+bash -c "$(curl -fsSL https://git.lohmar.co.uk/cclohmar/ReceiptNext/raw/branch/main/install.sh)"
 ```
 
 Or from a local clone:
diff --git a/install.sh b/install.sh
index 38c368b..d963e43 100755
--- a/install.sh
+++ b/install.sh
@@ -126,6 +126,10 @@ esac
 
 if command -v go &>/dev/null; then
     info "Building binary from source (pure Go, no CGO)..."
+    # Use a writable module cache — the user's home may not be writable
+    export GOMODCACHE="${INSTALL_DIR}/.go/mod"
+    export GOPATH="${INSTALL_DIR}/.go"
+    mkdir -p "${GOMODCACHE}" 2>/dev/null || sudo_if mkdir -p "${GOMODCACHE}"
     CGO_ENABLED=0 go build -ldflags="-s -w" -o app .
 else
     info "Go not found — downloading pre-built binary..."