If you’re relatively new to cloud or have a small development team, we recommend using the standard buildpacks to maximise the support you will receive from GOV.UK PaaS.
Using a custom buildpack will mean increased development and maintenance responsibilities and costs for you. If your language is not supported by standard buildpacks, we recommend that for a community supported custom buildpack that is maintained and updated by that community. We do not recommend that you create your own buildpack.
We are keen to help where we can, so please contact us if you are interested in this feature. If a custom buildpack is requested by multiple tenants, we will look to improving our support in this area.