v1.3.1 of Nestor80:
Complete list of pull requests
The "Portable" and "FrameworkDependant" variants require the .NET Runtime 6 to be installed.
To run the "Portable" version: dotnet N80.dll <command line>.
This is the assembler only, if you plan to write relocatable code you'll need also Linkstor80 and Libstor80.