<dh> does represent /ð/ in this romanization, yes.

As for <tu> being thou or tu, I’d have to check my design document.

I did once make a conlang that was what an Old English-Old French creole would be like.

Here’s the Sermon on the mount:

Isn’t anarchy just against imposed hierarchy? Most anarchists I’ve met are okay with heirarchies that form naturally, and believe those hierarchies to be enough for society to function, hence why they call themselves anarchists, not minarchists.