I want to play Sega Saturn and the original Xbox now! and the story of building an environment with an upscaler. I never thought cables would be a problem......

I want to play Sega Saturn and the original Xbox now! and the story of building an environment with an upscaler. I never thought cables would be a problem......
 I want to play retro games, especially the Sega Saturn, Dreamcast, and the original Xbox! So, I wanted to play in a modern environment, but I had to overcome some hurdles, and I struggled to make it happen. This experience may be helpful to someone, so I tried to summarize what happened at that time....

The linked article is in Japanese.