Dev setup for cal.com in a proxmox LXC

In an effort to help out others, I am sharing my steps to set up Cal.com in a Proxmox LXC (or) Debian 12 Enviornment.

For now the steps to reproduce, but I'm sure once we get this tested we can turn it into a build script. For now I'll make is as copy/paste able as possible.

**1. Setup your LXC: **(The yarn build process is a little demanding so make sure you give it enough resources to start. You can trim it down after.)

• I used the Template for debian-12-standard_12.2-1_amd64.tar.zst
  • Recommending minium of:
    • Disk Size: It will use up 10GB right from the start so 16->32GB?
    • 4 Cores
    • 4GB Ram
    • 1GB Swap

In the console: (sudo not needed at console)

apt update
apt upgrade

Add repositoy for yarn:

curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | apt-key add - echo "deb https://dl.yarnpkg.com/debian/ stable main" | tee /etc/apt/sources.list.d/yarn.list

Add repositoy for Docker:

apt-get install ca-certificates curl

install -m 0755 -d /etc/apt/keyrings

curl -fsSL https://download.docker.com/linux/debian/gpg -o /etc/apt/keyrings/docker.asc

chmod a+r /etc/apt/keyrings/docker.asc

echo "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/debian \
$(. /etc/os-release && echo "$VERSION_CODENAME") stable" | tee /etc/apt/sources.list.d/docker.list > /dev/null

apt update

apt-get install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin

Test if you want...

docker run hello-world

Install remaining requirements:

apt install postgresql
apt install yarn
apt install git

Now you can begin setting up cal.com

git clone https://github.com/calcom/cal.com.git
cd cal.com
yarn

Set up first user:

    yarn db-studio

Edit one of the dummy users. I did Owner 1 (ID 16) Encrypt your password with BCrypt https://bcrypt-generator.com/

Use openssl rand -base64 32 to generate a key and add it under NEXTAUTH_SECRET in the .env file. Use openssl rand -base64 32 to generate a key and add it under CALENDSO_ENCRYPTION_KEY in the .env file. Use openssl rand -base64 32 to generate a key and add it under CALENDSO_ENCRYPTION_KEY in the .env file.

.env.example is a hidden file but it's there. See it with "ls -a"

cp .example.env .env
openssl rand -base64 32
openssl rand -base64 32
nano .env

Add the Values then run a test server:

    yarn dx

Log in...

Cal.com runs fine using the dev build like this, but if you try to run a production build, it will probably error out.

    yarn
    yarn build

This is where I gave up and moved back to the Docker Build.