"Without a great strategy, hard work becomes a nightmare."
https://medium.com/@solaire-georges/whitepaper-digital-business-strategy-c074e132d0b2
Quoting James Clear, you will find in the link a whitepaper on Digital Microeconomics and Business Strategy. Learn about product market fit, unit economics of software, network effects, sustaining value creation in time, data-driven culture, and much more.
I'm posting here the part of a Whitepaper most relevant to indie hackers. Our fledgling solar startup is now a 5 figure MRR business and soon (finally) launching a brand. Indiehacker myself when I started 4 years ago, I had no experience in neither software nor energy.