Rails will always be a core pillar, but Ruby is a general purpose language with plenty of other applications. I would encourage you to look at some of the projects in https://awesome-ruby.com/ before declaring it "dead for everything but Rails.". Source: about 1 year ago

There are a lot of Ruby gems for sure. Checkout https://awesome-ruby.com/ which has suggested gems for several categories including an Excel one such as Roo or Spreadsheet Architect. Also can keyword searches a bit with the official gem repository at https://Rubygems.org. Source: almost 3 years ago

Envato Elements provides free courses (TUTS) online for beginners, intermediate, and advanced learners. According to  Benjamin Franklin “For the best return on your money, pour your purse into your head .” however, Envato elements have given this free opportunity to many people around the globe. Over 70 million people have enrolled and completed these free courses. Recently, more than 1,300 premium video... Source: over 1 year ago

Look up these people locally and introduce yourself, you can offer a variety of freelance for these established interior designers, from sourcing samples/materials to even setting up digital presentation boards for them on your phone/laptop using for example Miro, or helping with setting up digital-specifications for FF&E, also checkout EvatoTuts for tutorials and ideas on a variety of topics. Whatever you do, do... Source: over 1 year ago

Look for flat style or geometric style vector tutorials, say on tutsplus.com . They mention what type of blend style to use for shadows and etc and you generally need to make all that using simple shapes. As for how to make it look good, that is another question. For colors use ready made palettes. Source: over 2 years ago

Tuts+ Tuts+ contributes to the mission of “helping people learn and earn online”. Their goal is to see how people transform themselves and their lives by learning creative skills and earning money selling their creations or services to the world. And this is achieved by offering FREE HOW TO TUTORIALS. - Source: dev.to / almost 3 years ago

Looks really neat! You should try to submit tutorials for https://tutsplus.com/. I used to do that a few years ago. So basically if your concept gets approved then they pay you a nice amount of $ for each tutorial. It can be in video or written format! Source: almost 3 years ago