Do you have concerns about stealth? Would strong odor be an issue, or high visibility?
How long are you able to run the plant? Some are ready 8 weeks after they begin to flower (as soon as 4 weeks from seed start), some take 20+ more weeks. You may want to consider an “auto” which will begin to bloom when it is ready rather than a regular seed that blooms when the days drop under 12 hours.
I wouldn’t suggest making your own soil if you’re just starting out and want to minimize labor. Many commercial soils are good for the task. Don’t go bottom tier.
Adding nutrients is not hard, spoonful or two mixed in a gallon jug and poured until run-off at the bottom of your pot. At minimum you will need two mixes. One for getting big and green (vegetative) and one for when you (or the plant) are ready to bloom.
If you REALLY don’t want to add nutrients to your watering routine then you will need something preloaded. The weed produced will likely be 2nd rate.
Do a bit of research and keep asking specific questions here.