FSharpPacker works on scripts (with extension .fsx) written with F# and usually run with `dotnet fsi`. For the F# advent calendar [1] I recently blogged about how those scripts are a viable starting point for developing an application in F#. Actually, it's even possible to easily maintain a scripted version and a compiled version of the same F# app, with basically the same code. For those interested, it's at https://www.asfaload.com/blog/fsharp-fsx-starting-point/

1: https://sergeytihon.com/2024/10/26/f-advent-calendar-in-engl...