diff --git a/.gitignore b/.gitignore
index 0032a92..1525f52 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,7 +1,5 @@
-docker.env
-
+.DS_Store
 .idea
-
 .vscode
-
-.DS_Store
\ No newline at end of file
+docker.env
+docker.env.*
diff --git a/docker-compose.yml b/docker-compose.yml
index 738c443..99e6457 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -1,4 +1,4 @@
-version: '3'
+version: "3"
 services:
   app:
     container_name: basedash-app
@@ -10,20 +10,20 @@ services:
         condition: service_healthy
     env_file: ./docker.env
     ports:
-      - "5000:5000"
+      - 5000:5000
     restart: unless-stopped
   rabbitmq:
     image: rabbitmq:3.8-management-alpine
-    container_name: 'rabbitmq'
+    container_name: rabbitmq
     ports:
       - 5672:5672
       - 15672:15672
     # A stable hostname is important to prevent the volume from continually growing on
     # every restart. See issue described here: https://stackoverflow.com/questions/63115192/stale-rabbitmq-data-queue-files-eating-up-disk
-    hostname: 'rabbitmq'
+    hostname: rabbitmq
     volumes:
-      - rabbitmq-data/:/var/lib/rabbitmq/
-      - rabbitmq-logs/:/var/log/rabbitmq
+      - rabbitmq-data:/var/lib/rabbitmq/
+      - rabbitmq-logs:/var/log/rabbitmq
     healthcheck:
       test: rabbitmq-diagnostics -q ping
       interval: 30s
@@ -34,12 +34,12 @@ services:
     image: postgres:12.2
     restart: always
     ports:
-      - '5432:5432'
+      - 5432:5432
     env_file: ./docker.env
     volumes:
       - db:/var/lib/postgresql/data
     healthcheck:
-      test: [ "CMD-SHELL", "pg_isready -U postgres" ]
+      test: ["CMD-SHELL", "pg_isready -U postgres"]
       interval: 5s
       timeout: 5s
       retries: 5
@@ -48,8 +48,8 @@ services:
     container_name: nginx
     restart: unless-stopped
     ports:
-      - "80:80"
-      - "443:443"
+      - 80:80
+      - 443:443
     volumes:
       - ./nginx:/etc/nginx/conf.d
       - certbot-etc:/etc/letsencrypt
diff --git a/docker_setup.sh b/docker_setup.sh
index 6ab116f..d6c782a 100755
--- a/docker_setup.sh
+++ b/docker_setup.sh
@@ -1,20 +1,31 @@
 #!/bin/bash
 
-postgresPassword=$(cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w 64 | head -n 1)
-jwtKey=$(cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w 256 | head -n 1)
-cryptoKey=$(cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w 32 | head -n 1)
-publicIpAddress=$(dig +short myip.opendns.com @resolver1.opendns.com)
+export LC_CTYPE=C
+# :alnum: regex character class includes all Alphanumeric characters
+POSTGRESPASSWORD=$(cat /dev/urandom | tr -cd '[[:alnum:]]' | fold -w 64 | head -n 1)
+JWTKEY=$(cat /dev/urandom | tr -cd '[[:alnum:]]' | fold -w 256 | head -n 1)
+CRYPTOKEY=$(cat /dev/urandom | tr -cd '[[:alnum:]]' | fold -w 32 | head -n 1)
 
-echo "Generating random values for some environment variables..."
+# TODO This appears to be unused
+# publicIpAddress=$(dig +short myip.opendns.com @resolver1.opendns.com)
+
+echo "Generating random values for necessary environment variables..."
 
 if [ -f ./docker.env ]; then
+  echo "Backing up current docker.env file"
   mv docker.env docker.env.$(date +"%Y-%m-%d_%H-%M-%S")
 fi
+
 cp template.docker.env docker.env
 
-sed -i "s/JWT_KEY=.*/JWT_KEY=$jwtKey/" docker.env
-sed -i "s/CRYPTO_KEY=.*/CRYPTO_KEY=$cryptoKey/" docker.env
-sed -i "s/POSTGRES_PASSWORD=.*/POSTGRES_PASSWORD=$postgresPassword/" docker.env
-sed -i "s/POSTGRES_PASSWORD=.*/POSTGRES_PASSWORD=$postgresPassword/" docker.env
+# accommodate different behavior by `sed` on MacOS
+SPACER=""
+if [[ "$OSTYPE" == "darwin"* ]]; then
+  SPACER="''"
+fi
+
+sed -i $SPACER "s/JWT_KEY=.*$/JWT_KEY=$JWTKEY/" docker.env
+sed -i $SPACER "s/CRYPTO_KEY=.*$/CRYPTO_KEY=$CRYPTOKEY/" docker.env
+sed -i $SPACER "s/POSTGRES_PASSWORD=.*$/POSTGRES_PASSWORD=$POSTGRESPASSWORD/" docker.env
 
 echo "Cool! Now fill in any missing environment variables in docker.env then run docker-compose up to launch Basedash."