diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..4c49bd7
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+.env
diff --git a/README.md b/README.md
index c186e2c..f055a35 100644
--- a/README.md
+++ b/README.md
@@ -9,9 +9,11 @@ Needs `docker` and `docker-compose`
 xhost +"local:docker@"
 ```
 
-### Change your local user UID in the next line of `docker-compose.yml` for pulseaudio (default 1000)
-```
-- /run/user/[UID]/pulse:/run/user/1000/pulse
+### Add your local user UID and GID in the `.env` file:
+
+```bash
+echo "UID=${UID}" > .env
+echo "GID=${UID}" >> .env
 ```
 
 ### Execute with compose
@@ -21,4 +23,4 @@ docker-compose up -d
 
 ### License
 
-MIT
\ No newline at end of file
+MIT
diff --git a/docker-compose.yml b/docker-compose.yml
index ac9039f..7946692 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -1,8 +1,14 @@
-version: "2"
+version: "3"
 
 services:
   wahay:
-    build: ./wahay
+    build:
+      dockerfile: ./wahay/Dockerfile
+      context: .
+      args:
+        UID: ${UID:-1000}
+        GID: ${GID:-1000}
+        UNAME: ${UNAME:-mumble}
     hostname: wahay
     container_name: wahay
     environment:
@@ -10,5 +16,5 @@ services:
       - PULSE_SERVER=unix:/run/user/1000/pulse/native
     volumes:
       - /tmp/.X11-unix:/tmp/.X11-unix:ro
-      - /run/user/1000/pulse:/run/user/1000/pulse
+      - /run/user/${UID:-1000}/pulse:/run/user/${UID:-1000}/pulse
       - ./wahay/pulseaudio.client.conf:/etc/pulse/client.conf:ro
diff --git a/wahay/Dockerfile b/wahay/Dockerfile
index f3a1dc9..6dcb985 100644
--- a/wahay/Dockerfile
+++ b/wahay/Dockerfile
@@ -1,11 +1,18 @@
 FROM golang
-ENV UNAME mumble
+ARG UID=1000
+ARG GID=1000
+ARG UNAME=mumble
+
+ENV UID=${UID} \
+    GID=${GID} \
+    UNAME=${UNAME}
+
 RUN apt update && apt upgrade -y && apt install -y curl lsb-release dirmngr pulseaudio-utils && apt clean
 RUN curl -s https://dl.autonomia.digital/debian/keys.asc | apt-key add -
 RUN echo deb https://dl.autonomia.digital/debian $(lsb_release -c | cut -f 2) main | tee /etc/apt/sources.list.d/wahay.list
 RUN echo deb-src https://dl.autonomia.digital/debian $(lsb_release -c | cut -f 2) main | tee -a /etc/apt/sources.list.d/wahay.list
 RUN apt update && apt install -y wahay && apt clean
-RUN export UNAME=$UNAME UID=1000 GID=1000 && \
+RUN export UNAME=$UNAME UID=$UID GID=$GID && \
     mkdir -p "/home/${UNAME}" && \
     echo "${UNAME}:x:${UID}:${GID}:${UNAME} User,,,:/home/${UNAME}:/bin/bash" >> /etc/passwd && \
     echo "${UNAME}:x:${UID}:" >> /etc/group && \
@@ -15,4 +22,4 @@ RUN export UNAME=$UNAME UID=1000 GID=1000 && \
     chown ${UID}:${GID} -R /home/${UNAME} && \
     gpasswd -a ${UNAME} audio
 USER ${UNAME}
-ENTRYPOINT [ "wahay" ]
\ No newline at end of file
+ENTRYPOINT [ "wahay" ]