Installation of TLJH on Ubuntu 20.04 does not work

I use Ubuntu 20.04 LTS to install The Littlest JupyterHub (TLJH).

For whatever reason, I cannot switch to Ubuntu 22.04 LTS in the short term.

Until recently, there was no problem with the installation. But now there is (despite support for 20.04 as shown on Github)

curl -L The Littlest Jupyterhub | sudo -E python3 - --admin admin
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
0 0 0 0 0 0 0 0 --:–:-- --:–:-- --:–:-- 0
100 18389 100 18389 0 0 27819 0 --:–:-- --:–:-- --:–:-- 27819
The Littlest JupyterHub requires Ubuntu 22.04 or higher

Is there a workaround or modified command?

Looks like the README is out of date. You can try installing an older version. E.g. download an older installation script The Littlest Jupyterhub
and run it with the --version argument:
sudo python3 bootstrap.py --admin admin --version 1.0.0

Thank you for the hint that solves the problem :+1: