[Question/Feature Request] Parameterised notebooks within projects

Hi everyone,

I have a question regarding a somewhat advanced use case:
If I have created a project that contains a simple notebook (e.g. introduction.qmd) and a parameterised notebook (e.g. report_by_state.qmd) whose output is required multiple times with different parameter values is it possible to render the whole project using quarto render?

Say I want to render introduction.qmd and report_by_state.qmd for state 1, 2, and 3. If using html outputs this should result in

• introduction.html
• report_state_1.html
• report_state_2.html
• report_state_3.html

It is of course possible to write a shell script to render reports in this way, but I think it would be nice if there was something like this

project:
    render:
        - introduction.qmd
        - input: report_by_state.qmd
          params: 
              state: 1
          output: report_state_1.html
        - input: report_by_state.qmd
          params: 
              state: 2
          output: report_state_2.html
        - input: report_by_state.qmd
          params: 
              state: 3
          output: report_state_3.html

and being able to render everything with a single quarto render.

Except writing a custom shell script, is there currently a method which makes it possible to achieve something like this?

Start with the project render configuration and the quarto render command described in the issue, then check whether repeated inputs with different parameters and output names are supported. Done means rendering one project produces introduction.html plus the three state-specific HTML reports without a custom shell script.