Over the last few days I made this ggplot2-looking plotting DSL as a CLI tool and a Rust library.

https://github.com/williamcotton/gramgraph

The motivation? I needed a declarative plotting language for another DSL I'm working on called Web Pipe:

  GET /weather.svg
    |> fetch: `https://api.open-meteo.com/v1/forecast?latitude=52.52&longitude=13.41&hourly=temperature_2m`
    |> jq: `
      .data.response.hourly as $h |
      [$h.time, $h.temperature_2m] | transpose | map({time: .[0], temp: .[1]})
    `
    |> gg({ "type": "svg", "width": 800, "height": 400} ): `
      aes(x: time, y: temp) 
        | line()
        | point()
    `

"Web Pipe is an experimental DSL and Rust runtime for building web apps via composable JSON pipelines, featuring native integration of GraphQL, SQL, and jq, an embedded BDD testing framework, and a sophisticated Language Server."

https://github.com/williamcotton/webpipe

https://github.com/williamcotton/webpipe-lsp

https://williamcotton.com/articles/basic-introduction-to-web...

I've been working at quite a clip for a solo developer who is building a new language with a full featured set of tooling.

I'd like to think that the approach to building the BDD-testing framework directly into the language itself and having the test runner using the production request handlers is at least somewhat novel!

  GET /hello/:world
    |> jq: `{ world: .params.world }`
    |> handlebars: `<p>hello, {{world}}</p>`

  describe "hello, world"
    it "calls the route"
      let world = "world"
      
      when calling GET /hello/{{world}}
      then status is 200
      and selector `p` text equals "hello, {{world}}"

I'm married with two young kids and I have a full-time job. Before these tools there was no way I could build all of these experiments with such limited resources.