Systems
What a cold storage taught me about software
The most useful lessons I have had about building software did not come from a tech company. They came from working out how to co…
Software and writing
Rafsan Jani Rupok.
I build software for real work, and write about what I learn.
Apps for students, for coffee at home and for a working cold storage, alongside reviews, travel notes and books.
Journal
Recent writing.
Reflection
Why I still keep a website
Feeds are good at showing you today. A personal website is better at keeping the things that should still be there next year.
Books
What to do with a book you disagree with
The most useful books on my shelf are not always the ones I agree with. Sometimes reading a book well means arguing with it the w…
About
I start with real problems.
I build software for specific people: students preparing for exams, people making coffee at home, and a business managing its stock and money.
This site collects that work, along with what I write, read and review.
More about me
Workshop
What I’m building.
Medrilo
A study companion for medical and dental students that answers the one question that matters each day: what should I study next? …
Evencup
A calm, step-by-step guide to instant coffee at home. It knows the products you own, shows the cup filling as you go, and rebalan…
RBCS Cold Storage ERP
The complete operating system for a working potato cold storage in Bangladesh, from the gate to the accounts, in Bangla and Engli…
Reviews
Clear verdicts on what’s worth buying.
Tech
iPhone Duo
Tech
iPhone Duo: Apple’s first foldable
A confident first foldable that earns its place only if you truly want a small phone and a small tablet in one device, and can afford to pay for both.
Tech
18 Pro
Tech
iPhone 18 Pro: a camera that finally moves
A modest year with two real upgrades: the first variable aperture on an iPhone and much better battery life. Easy to recommend from an iPhone 16 or o…
Library
Books worth your time.
Contact
Have something
in mind?
Send me a project, a question or feedback on something I’ve written.
Get in touch