Risk: High

Starting a remote work software stack optimization services business from scratch can be risky, especially for someone who can't afford to lose money. Potential losses could include money invested in software tools, time spent on marketing and client acquisition efforts, energy dedicated to learning and implementing software solutions, and confidence if the business doesn't take off as expected. Beginners have been known to spend money on tools and resources without seeing immediate returns, leading to financial setbacks. There are startup costs involved in acquiring software licenses and marketing the services that may not pay off in the short term. Online discussions mention instances of people failing or losing money due to lack of market demand, ineffective marketing strategies, or inadequate expertise in software optimization. I'd rate the risk a 1 out of 3 because there is a high chance of losing money, especially without a solid business plan and market research.