Myna's predecessor was a customised version of Source Code Pro. but i've changed a lot of glyphs by borrowing designs and modifying glyphs. so, it may not look like it at all now.
Not everyone likes it, but I do.
i've not been faithful to the original design of Source Code Pro or even Fira Mono or Ubuntu Mono (from which i also derived a lot) but do try to stick to a simple geometrical ideal with only a few exceptions.