And template for but I assume that's like inline for like in zig.
Not familiar with Zig but AFAICT `inline for` is about instructing the compiler to unroll the loop, whereas `template for` means it can be evaluated at compile time and each loop iteration can have a different type for the iteration variable. It's a bit crazy but necessary for reflection to work usefully in the way the language sets it up.
A for loop executed during comptime is just
const stuff = comptime stuff: {
for (0...8) |i| {
// etc, build up some stuff
}
break :stuff some_stuff;
};