A solo software business has one durable advantage: the person making product decisions is close to the customer and the code. Its constraint is attention.
Design the business around the constraint
Limit the audience, support surface, integrations, and promises. Every exception becomes an operating cost you personally inherit.
Automate evidence, not relationships
Automate receipts, backups, monitoring, onboarding reminders, and recurring reports. Keep customer discovery and sensitive support conversations human.
Prefer boring reliability
A smaller stack, reversible releases, tested restores, and visible errors give a solo operator room to think.
Use a weekly operating rhythm
Separate customer work, product work, maintenance, and marketing so the loudest inbox item does not become the entire roadmap.
Know when one person is no longer the model
If security, availability, or support promises exceed what one person can responsibly cover, narrow the promise or bring in help before growth turns into fragility.