Web development is what I most commonly do, but I have done quite a few successful projects with technology I’ve never touched before.
I'm more interested in web applications rather than public-facing web design that has to be pretty, but I can modify pretty sites without breaking the pretty, and sometimes I can do pretty as long as you give me the artistic vision.
Beyond web development, I just wrote an NFT-Ethereum contract that is ready to go, waiting on my client's marketing and such. Last summer I created a Cardano Ada public stake pool and a voicemail system that had to record indefinitely, rather than the usual 10 minute limit. I've written two browser extensions and a USB device driver.
I've done a tiny bit of mobile, and I’m sure I can do it just fine. I could probably be persuaded to reduce rates to make up for the learning curve.
I posted a rate in my Gab ad, but I feel it needs further commentary. In 2004 I got $60 / hour on a project, so I could likely manage that and perhaps much more now. I've been freelancing for years, but if I were primarily interested in money, I would not be freelancing. I freelance because I'm writing this at 11:30pm, and I didn't start my work "day" very long ago. I'm a hard-wired night owl. Job recruiters don't understand "night owl," so I've been freelancing.
I'm not interested in $ / hour so much as that I actually get paid. Technically, my projects almost always go very well, but the people stuff such as money negotiations and collections often don't go as well. If you pay me small amounts for small benchmarks, early and often, you can likely both keep me very happy and bring down the $ / hour.
Otherwise put, I still haven't quite demonstrated to myself that freelancing works. I'm more interested in meeting my small expenses, then I can work at really making money.
I used a modified image of the Ubuntu Linux version 21.10 "Impish Indri": the desktop image of the stylized indri. Linux is free and open source software, and I'm 99% sure that the images are, too. I have upgraded to 22.04 "Jammy Jellyfish," but I think it's best to stick with vertebrates given that a few billion people have demonstrated little backbone in the last 27 months. Off hand, the jellyfish is the first mascot animal that hasn't been a mammal or bird. The symbolism troubles me.