Consider adding the ability to pass in custom Docker config

[gidztech]

You may not want to use the defaut Ubuntu image, and instead use something else. It would be useful to pass in a path to a custom Dockerfile and use that, or a custom config object.

Some problems with this may be the compatibility of certain entry scripts in the different OS, and the requirement of the end-user to pull and launch Chromium themselves in the container. A lot can go wrong here.

[bertuz]

I've written a solution here #30 which allows to run a different image, and must be compatible with docker-chromium. It doesn't touch the original Dockerfile neither it allows to change it, but it does the job.
If you want to use it temporarily simply use:

"docker-chromium": "https://github.com/bertuz/docker-chromium-img.git#explicit-platform",

as a dependency :) hope it helps others stumbling into this problem

[bertuz]

... and here you have the solution you were commenting @gidztech #31 ;-)