An F# or C# shebang executable should use a cached binary on subsequent runs

_This issue has been moved from [a ticket on Developer Community](https://developercommunity.visualstudio.com/t/An-F-or-C-shebang-executable-should-us/10518290)._

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I wrote [an F# shebang](https://github.com/daveyostcom/showperms/blob/main/showperms/showperms.fsx). It starts up slowly, of course.

It would be good if .NET would provide infrastructure to compile a shebang with AOT (in the background), cache the result, and use the result for subsequent runs. By comparing the shebang file against a hash stored with the cached binary, the system can respond appropriately if the shebang has changed.

Years ago I implemented a version of this technique called “[compileAndGo](https://yost.com/computers/compileAndGo/index.html)”. It works great.

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### Original Comments

#### Feedback Bot on 11/17/2023, 06:21 AM:

(private comment, text removed)