I have been at it on my own for almost two years. It's been very challenging. If partnership, or team, were to present itself I would strongly consider it. That hasn't been the case, though, so I press on alone (for now).
My career has been 50/50 split between technology (first half) and business related roles (second half). So, I had a foundation to start from, and the confidence to give it a shot. Unfortunately, my knowledge of programming languages, platforms, and architectures was outdated and so I've learned much from scratch. The learning curve hasn't been impossible to overcome, but it has been very, very time consuming and deeply frustrating.
Entrepreneurship is a team sport, not only for productivity reasons but also for social and psychological reasons. I like to compare this to marathon training. You can train on your own, but it's hell of a lot better to do so with a team. Just cause you can do it on your own doesn't mean YOU SHOULD.
If you have the mind and the money to do it on your own, go for it. Be prepared for the moments where you look down after climbing for several weeks and question the insanity of what it is that you're going after. Picture yourself free climbing, where going up is your only option, and you'll get through it.
Have faith that these challenges, as great as they are, can be overcome. They WILL be overcome.
If you possess these traits, I'd say that you are eligible for solopreneuring: Resilience. Determination. Resourcefulness.
You'll also have to be an endless source of your own motivation.