How can I run php cecil.phar serve inside DDEV

[terryupton]

Describe the bug

I am trying to use Cecil inside DDEV (which is build on docker).

When I expose the ports in DDEV config like so:

web_extra_exposed_ports:
  - name: cecil
    container_port: 8000
    http_port: 7999
    https_port: 8000

I am getting a 404 error.

Any ideas how I can get Cecil to serve inside DDEV?

If I build the site and set the webroot to _site in the DDEV config then I can load it.
But I would like to use the serve for building.

To reproduce

No response

Expected behavior

Cannot get the serve site to work.

Version

8.12.7

Operating System

macOS Sonoma 14.5

Relevant log output

No response