@Yeet 🙏 Thanks! Two quick things. 1) I want to use underscores instead of dashes/spaces in en.yml. 2) I forgot to mention and this is my bad but the {%t tags don't actually work in the include cards.
Take a look at what I did here to work around that (https://github.com/privacytoolsIO/privacytools.io/blob/i18n/_includes/sections/resources.html#L5) and then here (https://github.com/privacytoolsIO/privacytools.io/blob/i18n/_includes/sections/resources.html#L21) and tell me if that makes any sense to you. I'll add that info to the issue page.