diff --git a/.cfg/install.sh b/.cfg/install.sh
index 1b40481..064f7a3 100755
--- a/.cfg/install.sh
+++ b/.cfg/install.sh
@@ -16,7 +16,11 @@ cfg "config" status.showUntrackedFiles no
 cfg "config" commit.verbose true
 
 if test -f "$(which apt)"; then
-  sudo apt install -y zsh
+  CMD=""
+  if [ "$(id -u)" != "0" ]; then
+    CMD="sudo"
+  fi
+  ${CMD} apt install -y zsh
 fi
 
 ./.cfg/scripts/install-brew.sh
diff --git a/.cfg/scripts/install-brew.sh b/.cfg/scripts/install-brew.sh
old mode 100644
new mode 100755
index 6085ab0..3f6654a
--- a/.cfg/scripts/install-brew.sh
+++ b/.cfg/scripts/install-brew.sh
@@ -1,7 +1,11 @@
 #!/usr/bin/env bash
 
 if test -f "$(which apt)"; then
-  sudo apt install -y build-essential curl git
+  CMD=""
+  if [ "$(id -u)" != "0" ]; then
+    CMD="sudo"
+  fi
+  ${CMD} apt install -y build-essential
 fi
 
 curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh | env NONINTERACTIVE=1 bash
diff --git a/.cfg/scripts/install-packages.sh b/.cfg/scripts/install-packages.sh
old mode 100644
new mode 100755