You can build anything. Learn how to make people pay for it.
I’m Seb - a software engineer with 14+ years of experience, building a portfolio of digital products, stacking income streams on each other, on the road to $1M in cumulative revenue. In public, with real numbers.
I track the progress on my $1M quest, reserving each square to a $1k earned.
This newsletter exists for one reason: shipping is a solved problem for developers. Selling is not. I’m closing that gap - for myself, and for you.
This is for you if:
You’ve built or shipped something - a SaaS, a course, a tool - and nobody bought it.
You have 1–1.5 hours a day between your job and your family, and you can’t afford to waste them on another dead side project.
You want a repeatable system, not another guru promising $100k months.
You’d rather see revenue screenshots and honest failure post-mortems than motivational hype.
What you get as a subscriber:
Essays on leverage - how engineers can apply systems thinking to income, products, and wealth. Evergreen, no fluff.
Build logs - what I’m building, what worked, what flopped, with real numbers attached. And what I do about it.
Frameworks you can run - validation checklists, launch sequences, pricing ladders. Things you execute, not just read.
Why trust me:
I don’t teach theory. I publish the receipts:
2018–2023: a Udemy course that made ~$14k
2021–2025: Hanami Mastery, an open-source content project - $43k+
2022–2025: 300% investment returns (Bitcoin/Gold thesis, documented)
Today: $100k+ accumulated — 10% of the way to $1M, tracked publicly
I’m not 10 years ahead of you selling a lifestyle. I’m 3–6 months ahead of you, showing my work.
My operating principles (the short version — full story in Start Here):
Systems over intensity. Sustainability over impressiveness. Family as a design constraint, not a sacrifice. Everything public, everything measured.
Two ways to start:
Subscribe - one deep essay or build log per week, free.
Want the shortcut? The Ship & Sell Starter Kit ($29) — everything a developer needs to launch a first digital product and get paid, in under 14 days.
Feel free to check what else I’ve shipped so far, and what could help YOU to speed up.
Where else you can find me.
X: @sebwilgosz
Substack: Sebastian Wilgosz
Website: sebwilgosz.com
EoW Youtube (upcoming): @sebwilgosz
