Homemade Sawmill Slicing up Black Walnut

This is a combination of small videos I recorded this with my cell phone. I do not have any footage of it cutting as I was unable to record as I ran the saw. A former student of mine runs a tree service and he dropped off a couple logs of black walnut. All together I netted 10 good useable boards of 2 in thick walnut.
I am happy with how the saw is running, I do have a couple modifications I want to make to the saw, but all together it is proving to be a very capable little sawmill. I brought it up to the high school where I work to mill material for shop projects at school w students. Any questions reach out. Hope to do more milling in the future.

[@Shroommduke]

I do have a couple questions.
What is the speed of the blade?
How long is the blade?
Engine HP?
What did you use for the blade guides?
Is it an automatic feed, how does that work?
oh and what about safety and libility, Thats gotta be an issue, insurance?
I have been wanting to build one, I have some blades, axels, tires and wheels so far, and I have an old car lift with 2 20' eye-beams i could run the saw on.
I hope that's not too many questons..,.