After creating a new droplet and forwarding git.nunosempere.com to it...

## 1. Create a new user

<https://www.digitalocean.com/community/tutorials/how-to-create-a-new-sudo-enabled-user-on-ubuntu-22-04-quickstart>
adduser sealtiel
usermod -aG sudo sealtiel

# no firewall
# <https://www.digitalocean.com/community/tutorials/initial-server-setup-with-ubuntu-22-04#step-5-%E2%80%94-enabling-external-access-for-your-regular-user>
# ufw allow OpenSSH

# clone gitea
git clone https://github.com/go-gitea/gitea
cd gitea
git checkout v1.17.1
git switch -c v1.17.1
git checkout main
git checkout v1.17.1

# download go
wget https://go.dev/dl/go1.19.1.linux-amd64.tar.gz -O go.tar.gz
tar -xzvf go.tar.gz
sudo mv go /usr/local 
# follow instructions on https://go.dev/doc/install
go version

# download node
curl -fsSL https://deb.nodesource.com/setup_18.x | sudo -E bash -
sudo apt-get install -y nodejs# follow instructions on https://go.dev/doc/install

## install make
sudo apt install make

## build gitea
export NODE_OPTIONS=--max-old-space-size=16384
TAGS="bindata sqlite sqlite_unlock_notify" make build

## build doesn't work: install binary instead (annoying)
wget -O gitea https://dl.gitea.io/gitea/1.17.1/gitea-1.17.1-linux-amd64
chmod +x gitea

## adduser
sudo adduser \
  --system \
  --shell /bin/bash \
  --gecos 'Git Version Control' \
  --group \
  --disabled-password \
  --home /home/git \
   git

## Create required directory structure
## do below with sudo
mkdir -p /var/lib/gitea/{custom,data,log}
chown -R git:git /var/lib/gitea/
chmod -R 750 /var/lib/gitea/
mkdir /etc/gitea
chown root:git /etc/gitea
chmod 770 /etc/gitea

## copy to bin
sudo cp gitea /usr/local/bin/gitea
sudo chmod +x /usr/local/bin/gitea


## <https://docs.gitea.io/en-us/linux-service/>
wget https://raw.githubusercontent.com/go-gitea/gitea/main/contrib/systemd/gitea.service -O gitea.service
sudo mv gitea.service /etc/systemd/system/gitea.service
sudo systemctl enable gitea
## systemctl restart gitea

## To do
sudo chmod 750 /etc/gitea
sudo chmod 640 /etc/gitea/app.ini

## Install nginx, to reverse proxy it
## https://docs.gitea.io/en-us/reverse-proxies/
## https://www.digitalocean.com/community/tutorials/how-to-install-nginx-on-ubuntu-22-04

sudo systemctl reload/start/stop/restart nginx


Stopped gitea for now, to continue another day.

Haha, using an Sqlite3 database, the thing works!

## Add certbot

## The working directory is /var/lib/gitea