This font was made with glyphr. In a conventional program (Let's say that this program is made in C), for it to be considered open source, the c file that contains the code has to be distributed, outside of that, there is the compilation file and additionally a README, in fonts it is different, the majority use a different programming language from one to the other to create the typography, and the only way I see that a font made in fontforge can be considered open source is for it to be shared the sfd file that fontforge generates when saving the font, this file is editable in a code editor, not like other files such as otf or ttf, which are directly binary