Access the default docker file railway uses for deployment

[dapper sinew]

Is there a way to access to Dockerfile railway uses when running railway up for a nodejs/expressjs api. I would like to use the default file but make some mods

[unique niche]

Railway uses nixpacks to generate the dockerfile

There's a number of config env vars you can use that are documented on the NIXPACKS docs

[dapper sinew]

hello @unique niche thanks for the reply. I saw that Railway uses nixpacks. However I can't find an example with the actual file so I can modify it. My intention is to add ffmpeg

[broken pollen]

what do you need ffmpeg for?

[dapper sinew]

generating a thumbnail

https://nixpacks.com/docs/guides/configuring-builds

[unique niche]

Nixpacks generates a dockerfile and uses that to generate the container. You can configure nixpacks via env vars or a config file.

If there's something you want that you think should be included you can make an issue if you want.

Nixpacks is preferable over a dockerfile on railway as it's faster

For example NICKPACKS_APT_PKG=ffmpeg

[broken pollen]

(set NIXPACKS_PKGS=ffmpeg under variables)

[dapper sinew]

thanks again @unique niche doing my best to understand all this. Would that be an .env var?