diff --git a/build.containerfile b/build.containerfile
index bdf2b78..3e3a830 100755
--- a/build.containerfile
+++ b/build.containerfile
@@ -1,6 +1,8 @@
+# Use build arguments to specify the base image and architecture
 ARG image=debian:testing
 ARG arch=amd64
 
+# Stage 1: Build and install mini_sudo
 FROM $arch/$image AS mini_sudo
 WORKDIR /tmp
 COPY mini_sudo.c ./
@@ -10,12 +12,21 @@ RUN apt-get update \
     && gcc -Wall -Werror -static -o sudo mini_sudo.c \
     && install -m 6755 sudo /usr/local/bin/sudo 
 
+# Stage 2: Final image
 FROM $arch/$image
 WORKDIR /tmp
+
+# Copy repository configration files for apt 
 COPY debian-src.sources local-pkgs.list /etc/apt/sources.list.d/
 COPY local-pkgs /etc/apt/preferences.d/
+
+# Create a directory for local packages and touch the Packages file
 RUN mkdir /pkgs && touch /pkgs/Packages
+
+# Copy the package list file
 COPY pkgs ./
+
+# Install packages from pkgs list and mark them as held, test gcc and cleanup
 RUN apt-get update \
     && DEBIAN_FRONTEND=noninteractive apt-get install \
        --no-install-recommends -y build-essential ca-certificates \
@@ -25,8 +36,14 @@ RUN apt-get update \
     && gcc -o main main.c
     && ./main \
     && find /tmp -mindepth 1 -delete
+
+# Copy the build scripts to /usr/local/bin
 COPY build_source build_indep build_archde build /usr/local/bin/
+
+# Copy mini_sudo from stage 1
 COPY --from=mini_sudo /usr/local/bin/sudo /usr/local/bin/sudo
+
+# Create user dev and set the working directory for the user
 RUN groupadd dev && useradd -m -g dev dev
 USER dev
 RUN mkdir /home/dev/work