This guide will assume you are on Debian 11 (“bullseye”) or later. This guide should also work with Ubuntu 18.04 (“Bionic Beaver”) and later. It also assumes that you have administrative rights, either as root or a user with [sudo permissions](https://www.digitalocean.com/community/tutorials/how-to-add-delete-and-grant-sudo-privileges-to-users-on-a-debian-vps). If you want to run this guide with root, ignore the `sudo` at the beginning of the lines, unless it calls a user like `sudo -Hu akkoma`; in this case, use `su <username> -s $SHELL -c 'command'` instead.
**Note**: To execute a single command as the Akkoma system user, use `sudo -Hu akkoma command`. You can also switch to a shell by using `sudo -Hu akkoma $SHELL`. If you don’t have and want `sudo` on your system, you can use `su` as root user (UID 0) for a single command by using `su -l akkoma -s $SHELL -c 'command'` and `su -l akkoma -s $SHELL` for starting a shell.
### Install Elixir and Erlang
-If your distribution packages Elixir 1.14+, you can install it directly from the distro repositories and skip to the next section of the guide:
+If your distribution packages a recent enough version of Elixir, you can install it directly from the distro repositories and skip to the next section of the guide:
```shell
sudo apt install elixir erlang-dev erlang-nox
```
Otherwise use [asdf](https://github.com/asdf-vm/asdf) to install the latest versions of Elixir and Erlang.
First, install some dependencies needed to build Elixir and Erlang:
* The previous command creates also the file `config/setup_db.psql`, with which you can create the database:
```shell
sudo -Hu postgres psql -f config/setup_db.psql
```
* Now run the database migration:
```shell
sudo -Hu akkoma MIX_ENV=prod mix ecto.migrate
```
* Now you can start Akkoma already
```shell
sudo -Hu akkoma MIX_ENV=prod mix phx.server
```
### Finalize installation
If you want to open your newly installed instance to the world, you should run nginx or some other webserver/proxy in front of Akkoma and you should consider to create a systemd service file for Akkoma.
#### Nginx
* Install nginx, if not already done:
```shell
sudo apt install nginx
```
* Setup your SSL cert, using your method of choice or certbot. If using certbot, first install it:
If that doesn’t work, make sure, that nginx is not already running. If it still doesn’t work, try setting up nginx first (change ssl “on” to “off” and try again).
---
* Copy the example nginx configuration and activate it: