I’ve wanted to learn TIG welding for a long time. I’ve never had the space to do it. However, the new house I got has 230V right in the garage and more space than I can currently use. TXRX Labs (https://txrxlabs.org/) offers an excellent two day class that shows you the very basics of setting up your power supply for TIG tacking and welding. It’s about 6 hours in total. Not enough time to learn TIG but enough to make a few welds and learn enough to practice on your own.