Ask HN: Startup Insights-Idea Generation, Problem Validation in Vertical Sectors

This question is targeted towards individuals who have embarked on their entrepreneurial journey by either launching their own startup or bootstrapping it, specifically in vertical businesses like manufacturing, agriculture, construction, and more. I'm curious to know how you generated your business ideas, acquired your initial customers, and validated the problem you were addressing. If you have any advice, suggestions, or potentially valuable startup ideas worth exploring, I would greatly appreciate your input. Thank you in advance for sharing your insights!