Software engineer

How things actually work, written down.

I build software, and I’m interested in the mechanics underneath businesses and markets — the part that usually gets skipped. This is where I write that down, and where the things I build end up.

Get the letterRead the writing

Writing

Longer pieces.

If something was forty seconds elsewhere, this is the part that wouldn’t fit in forty seconds.

Latest[2]
4 Sept 2026You can't decide to be confident. You can only collect evidence.Mindset isn't a setting you change. It's the residue of a record you've kept, which is why affirmations bounce off and small kept promises don't.4 min4 Sept 2026Most of what gets sold as masculinity is a costumeBeing formidable and looking formidable are different projects, and only one of them is for sale. The tell is who the behaviour is aimed at.4 min

All writing →

Lab

Instruments, not signals.

Small instruments that do arithmetic which is easy to get wrong under pressure. Nothing here predicts anything. Free, and nothing leaves your browser.

Instruments[6]
01 · LiveMarket Conditions IndexA composite reading of crypto market state — trend, momentum, order flow and breadth — rebuilt every five minutes from live exchange data.live02 · CryptoCrypto position sizerSize a spot or perp position from your stop, and see what funding costs you over the hold before the trade has done anything.live03 · ForexForex position sizerLots from pips, with the pip value worked out for your pair and account currency — and the risk you actually take after the broker rounds you down.live04 · EquitiesShare & ETF position sizerWhole shares from a stop, and a check on whether the position quietly needs margin you don't have.live05 · SeriesIndicator workbenchPaste a column of closes and see the moving averages and RSI computed over it, with the warm-up shown honestly rather than filled in.live06 · RiskLeveraged position planMargin, liquidation and a three-step exit that blends to 1:3 — for crypto perps or forex, from your capital and your stop.live

Projects

Things I’m building.

Listed with the stage each one is actually at.

Active[1]
2026RelloomaA multi-tenant CRM for businesses that sell over Instagram and WhatsApp, where the conversation is the pipeline and the inbox is the product.building

Background

Where the writing comes from.

Production engineering

Building and running systems in production — TypeScript and Node, distributed services, infrastructure that has to stay up while people are using it. The habit that transfers: things fail at the seams, and the boring parts are where it gets decided.

Markets, with my own money

I’ve traded gold and crypto with my own capital, and taken real losses doing it. Sitting in a drawdown teaches you things about risk and position sizing that reading about it doesn’t.

How money moves between businesses

Letters of credit, payment terms, guarantees, settlement, and what happens when one side doesn’t perform. Most business advice skips this, and it’s usually where the answer is.

The letter

One idea a week, taken apart properly.

Every Sunday: one idea from business, standards, or character, and the mechanism underneath it. Long enough to be worth the time, short enough to read before the coffee goes cold.

No motivation. No countdown timers. No course at the end of a funnel.

One email a week. Unsubscribe in one click.

Work

A small number of engagements at a time.

I take on a limited amount of engineering and advisory work — architecture reviews, systems that have outgrown the design they started with, and teams that want a second opinion from someone who has run this kind of thing in production.

If that sounds useful, write and say what you’re dealing with.

hamedsedaghatcrt83@gmail.com