How can I operate a hydroponic vegetable garden in my garage?

Image by Tianyake
在小镇的住宅区， 屋前的一小块空地， 被勤劳的居民辟为自供自足的小菜圃 / The small plot of vacant land opposite the residential house in this small town, the diligent house-owner makes use of it to turn it into a farm or rather a self-sufficient vegetables garden.

Question by L.K. Duh: How can I operate a hydroponic vegetable garden in my garage?
It seems to me that garage-based hydroponics might be more effective than planting a victory garden. In a moderate climate, what does it take to operate a hydroponic vegetable garden at home?

Can you help? Leave your own answer in the comments!