Its actually horribly simple to do. If you can drive, grind, steep, wait, double boil and mix you can accomplish making very dank hash oil in about 5 hours.
Step one- Go to store
In store get isopropyl rubbing alcohol 91% by volume. maybe two bottles or so enough to make sure you can cover all your trim amply.
get epsom salt.
Get cheese cloth and coffee filters.
Step two- Go home.
Assemble ingredients and cookware.
Get your trim, all of it.
Get a few glass bowls or other containers that are glass.
Step three- go to kitchen
When in kitchen pour alcohol into glass cup.
pour epsomsalt so there are a decent ammount of crystals remaining in the bottom. stir. Pour through coffee filters into another cup. Repeat about 4 times, you want a lot of epsom salt to have run through the alcohol. This essentially dries the alcohol of the water. (lucky you this makes the hash primo most people don't do research and settle for less...)
Lay cheese cloth in bowl, make sure the piece of cloth is able to cover the entire bowl when sagging to the bottom, this is a filter and you want to make sure to get as much pot out as you can.
Pour all your ground trimmings into bowl ontop of cheese cloth.
Pour your dry iso alcohol (should be about 99%) until the trimmings are covered sufficiently. Wait one minute. Pull up cheese cloth removing all pot and squeeze to remove more alcohol.
Take the remaining trim and pour more dry isopropyl over the trimmings while above the bowl giving it another squeeze (kind of like hydrating and dehydrating a sponge).
Then take the remaining solution and put it through a coffee filter to get more of the pot solids out.
Step 4- gather your hash alcohol solution which should be an interesting color by now. Grab a electric hot plate an extension cord and pot which you can set bowl in. Heat water to boil. This will cause the alcohol to heat. if there isn't a breeze out put a fan on it circulation will speed evaporation.
Once the alcohol has evaporated mostly I would pour the remaining contents into their final container waiting for the remaining alcohol to evaporate. This makes the transfer easier then scraping and melting it into its new home.
Disclaimer, I am not really telling you to do anything I just said but just stating this would be the way to do it if it were to be done.
AkA this is an illegal thing to do. I am not responsible for your actions.
Gots to be legal about it.