We've been using Taskfile, which is fantastic and super understandable, but it's only a task-runner and as such wouldn't meet OP's needs. I hated `just` and did not find it at all intuitive.

Only problem I have with the article is saying that Ruby doesn't work on Windows is just categorically false. It's one of the easiest languages to install and use on Windows, even easier than C# and Java, and I'm a Java/Kotlin dev, so that's saying something. It's literally just a single exe/msi installer.

But you wouldn't want to be using Rake anyway, it's not really that good, and is only useful if you're working in an environment where you don't want to install anything and you hate Make. Then Ruby is very often installed by default with Rake and so you get a 'free' build tool. Rake was good 10 years ago, but not so much anymore.

Anyway, if you needed a specific kind of tool and built it then all the power to you. Can't blame you for not wanting to use the other options!

I wish you success with this! I really was surprised to see that there isn’t a modern make replacement that actually does what make does, and does it well: build /compile things with a notion of inputs and outputs and out-of-date checks. Most appear to be “just” command runners. That’s a very useful thing to have, but it’s not really a make replacement. Then again, many “build tools” do get very large and unwieldy eventually, so maybe it’s more a case of the good make replacements simply getting too much traction…

> Why a new language?

In my opinion, Starlark (in rust, Apache 2: <https://github.com/facebook/starlark-rust/blob/v0.13.0/LICEN...>) is the way since it is designed for sandboxed environments and also (AIUI) was initially designed to support Bazel, a build tool

Now, I'm totally on board that people can hate on whitespace sensitive languages, but if my choice was "make my own language that no one has ever heard of" or "delete the Python hater's emails" ...

It also would mean that you could tag your Werkfile in .gitattributes with linguist annotations[1] and they'd syntax highlight, which isn't the case with your own language https://github.com/simonask/werk/blob/5990c8a9536a1a76c3da59...

1: https://github.com/github-linguist/linguist/blob/v9.0.0/docs...

This seems pretty much in line with my ideals for a make replacement, which is a project I have been thinking about starting for ages. The only major use-cases I have that don't seem to be covered are "tasks" in werk parlance that only run given changes in some "from" files, and just-once tasks. For both of these in Make I use empty files as targets, e.g. `make/foo`, which I `touch` at the end of the recipes.

An example of a just-once task might be running some setup script on dev machines when setting up a work environment. An example of a task with prereqs might be running a nix command to source things into the local environment whenever a `shell.nix` or other file changes.

I also wasn't able to immediately find documentation on what the available config options are (referenced in the language documentation). Is it possible to set a shell to use for run statements?