Maybe look at Quarto? Almost every project I start now begins with `quarto project create`. From there I can pivot the material into HTML, .docx, PDF, .PPTX, Typst, LaTeX, and all of them simultaneously.
VSCode and RStudio Desktop both have visual editor components, although they are not perfect. Positron is another editor that is data science specific built on top of VSCode that has Quarto rendering support.
There isn't an 'on-the-fly' rendering component for Quarto per se, but using the preview mode it will re-render a preview watching for file changes. A nice GUI editor for Quarto is definitely something people have been asking for. Closest equivalent would probably be Overleaf or Typst web editors?
HN is fickle, it'll revert, faster if you don't mention it.
I have a couple of "proprietary" pipelines that I'd love to replace, and this also gave me an idea.
For instance when I want to publish a screenshot from windows to my fediverse homeserver, I want it to be as few kilobytes as possible, as I've run a homeserver and the storage needs are obnoxious, so I do my part. Windows takes massive screenshots, embarrassing even by windows 95 bitmap screenshot standards. So win+shift+s, crop selection, win - ms <enter>, shift+insert, ctrl+shift+x, file->save as JPEG, name, enter.
As few as three years ago if I cropped right I could paste the clipboard JPEG and all was well. It doesn't take me long but every time I do it I get three more grey hairs. And I take a lot of screenshots. 2,209 in my screenshot folder. did you know windows saves all your screenshots? they used to be ephemeral.
anyhow i have a bunch of screwy things similar to but not as "simple" as that example. Audio work, text work, data manipulation.