diff --git a/docs/development/environment-setup/mac-os.md b/docs/development/environment-setup/mac-os.md
index 73c657d04..8f11469af 100644
--- a/docs/development/environment-setup/mac-os.md
+++ b/docs/development/environment-setup/mac-os.md
@@ -28,11 +28,8 @@ brew install git
 
 ### Install RVM
 
-You need software-properties-common installed in order to add PPA repositories.
-
 ```bash
 curl -L https://get.rvm.io | bash -s stable
-source ~/.rvm/scripts/rvm
 ```
 
 ### Install Ruby
@@ -44,6 +41,7 @@ If you are using `rvm` :
 ```bash
 rvm install ruby-2.7.2
 rvm use 2.7.2
+source ~/.rvm/scripts/rvm
 ```
 
 If you are using `rbenv` to manage ruby versions do :
@@ -72,7 +70,13 @@ brew install yarn
 
 ### Install postgres
 
-The database used in Chatwoot is PostgreSQL. Use the following commands to install postgres.
+The database used in Chatwoot is PostgreSQL.
+
+1) Install PostgresApp (https://postgresapp.com). This is easiest way to get started with PostgreSQL on mac.
+
+or
+
+2) Use the following commands to install postgres.
 
 ```bash
 brew install postgresql
@@ -92,10 +96,10 @@ Chatwoot uses Redis server in agent assignments and reporting. To install `redis
 brew install redis
 ```
 
-Enable Redis to start on system boot.
+Start the redis service.
 
 ```bash
-launchctl unload ~/Library/LaunchAgents/homebrew.mxcl.redis.plist
+brew services start redis
 ```
 
 ### Install imagemagick
diff --git a/docs/development/project-setup/errors.md b/docs/development/project-setup/errors.md
index d4e5b9e02..7453745f6 100644
--- a/docs/development/project-setup/errors.md
+++ b/docs/development/project-setup/errors.md
@@ -5,8 +5,35 @@ title: "Common Errors"
 
 ### Errors you might encounter while setting up the project
 
+
+#### Redis connection error
+
 ```bash
 ArgumentError: invalid uri scheme
 ```
 
 This is an error thrown from redis connector. You might not have setup the redis environment variables properly. Please refer to dependencies section to install redis-server and [Configure Redis URL](https://www.chatwoot.com/docs/environment-variables) in the environment-variables section.
+
+
+#### pg gem Installation error
+
+If you see the following error while bundle installation, provide the Postgres path as pg_config.
+
+```
+Gem::Ext::BuildError: ERROR: Failed to build gem native extension.
+
+An error occurred while installing pg (1.2.3), and Bundler cannot
+continue.
+Make sure that `gem install pg -v '1.2.3' --source 'https://rubygems.org/'`
+succeeds before bundling.
+
+checking for pg_config... no
+No pg_config... trying anyway. If building fails, please try again with
+ --with-pg-config=/path/to/pg_config
+```
+
+To fix this, try executing
+
+```
+gem install pg -v '1.2.3' --source 'https://rubygems.org/' -- --with-pg-config=path-to-postgres-installation/12/bin/pg_config
+```
diff --git a/docs/development/project-setup/quick-setup.md b/docs/development/project-setup/quick-setup.md
index 2c802bead..8ad42acaf 100644
--- a/docs/development/project-setup/quick-setup.md
+++ b/docs/development/project-setup/quick-setup.md
@@ -11,6 +11,8 @@ Use the following command to install ruby dependencies.
 bundle
 ```
 
+If you face issue with pg gem, please refer to [Common Errors](/docs/common-errors#pg-gem-installation-error)
+
 ### Install JavaScript dependencies
 
 ```bash
@@ -19,6 +21,12 @@ yarn
 
 This would install all required dependencies for Chatwoot application.
 
+### Setup environment variables.
+
+```
+cp .env.example .env
+```
+
 Please refer to [environment-variables](./environment-variables) to read on setting environment variables.
 
 ### Setup rails server
@@ -81,7 +89,7 @@ docker-compose run -rm server bundle exec rake db:reset
 
 This command essentially runs postgres and redis containers and then run the rake command inside the chatwoot server container.
 
-### Running Cypress Tests 
+### Running Cypress Tests
 
 Refer the docs to learn how to write cypress specs
 https://github.com/shakacode/cypress-on-rails
@@ -89,7 +97,7 @@ https://docs.cypress.io/guides/overview/why-cypress.html
 
 ```
 # in terminal tab1
-overmind start -f Procfile.test 
+overmind start -f Procfile.test
 # in terminal tab2
 yarn cypress open --project ./test
 ```