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Exactly. I wanted to also point this out in the relation of the author's desire to put all build commands in `just` configuration file. It sounds to me like a desire to use some another "slick and shiny tool" (which `just` is when compared to `make`), but what's the point exactly? The build-process will still be container-dependent and may or may not work outside of the container, and you don't get the benefit of Docker caching anymore.

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Being able to run "just build" in a container-free local development environment and have the same build process run as the one in your production setup is a productivity boost worth having.

Same as how it's good to be able to easily run the exact same test suite in both dev and CI.

But wouldn't you run whatever you are writing in Docker container on dev anyway? I always did just that, as long as I use Docker as a deployment tool for a project at all. And, in fact, even sometimes when I didn't, since it's much easier and cleaner to keep, say, multiple php or redis versions in containers, than on your PC. And it's only maybe a year since it became actually effortless to maintain all this version-zoo locally for Python, thanks to uv. In fact, even when it's something like Go, so the deployable is a compiled binary, I'd usually wrap the build process into a Docker container for dev anyway.

Depends on how complex your stuff is. Most of my own projects run outside of Docker on my machine and run inside Docker when deployed. I have over 200 projects on my laptop and I don't want the overhead of 200 separate containers for them.

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