I guess the author didn't use that many other programming languages or OSes. You can do the same even in garbage collected languages like Java and C# and on Win

I guess the author didn't use that many other programming languages or OSes. You can do the same even in garbage collected languages like Java and C# and on Windows too. https://docs.oracle.com/javase/8/docs/api/java/nio/MappedByteBuffer.html https://docs.oracle.com/javase/8/docs/api/java/nio/MappedByt... https://learn.microsoft.com/en-us/dotnet/api/system.io.memorymappedfiles.memorymappedfile?view=net-10.0 https://learn.microsoft.com/en-us/dotnet/api/system.io.memor... https://learn.microsoft.com/en-us/windows/win32/memory/creating-a-file-mapping-object https://learn.microsoft.com/en-us/windows/win32/memory/creat... Memory mapping is very common.