Founders' notes

Field notes from operators shipping the next thing.

Sharp essays on go-to-market, AI in SaaS, and operations, the stuff we wish someone had told us before we shipped. Written by the Cafiyn founders, updated as we ship. No ghostwriters, no filler.

Featured

Go-to-market strategy for startups: the one-page template that actually gets used

A complete go-to-market strategy template for startups: define your ideal customer profile, pick one channel, write cold email that gets replies, choose prospecting tools, and close the loop. With the numbers most guides leave out.

Growth·Sep 3, 2026·CKS
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Archive

Every essay we've published.

Growth

Competitor analysis for startups: a practical framework

How to run competitor analysis that changes decisions: the six things to read, where the data hides, and how to turn a crowded market into positioning.

Growth

TAM, SAM, SOM: how to calculate market size in 2026

What TAM, SAM, and SOM actually mean, why bottom-up beats top-down, and a worked example of calculating market size that survives investor scrutiny.

Growth

How to validate a startup idea in 2026, before you build

A practical, step-by-step way to validate a startup idea: size the demand, name the buyer, read the competition, and score willingness to pay, in days instead of months.

Growth

Ideal customer profile: 5 ICP examples and a template

What an ICP actually is, how it differs from a buyer persona, five concrete ICP examples across B2B categories, and a fill-in template you can use today.

Engineering

What AI models actually cost: 50 models, 22 providers, one table

Pricing for 50 AI models across text, speech, image, and video, pulled out of 22 separate provider pages and put in one place. The same workload ranges from $18 to $3,037 a month depending only on which model you pick.

Growth

SEO, AEO, and GEO: how to actually get found in 2026

A founder's field guide to the three disciplines that now decide whether anyone finds you: search engine optimization, answer engine optimization, and generative engine optimization, explained by someone who has watched search change for twenty years.

Growth

Selling got harder. Marketing got harder. So we built Cafiyn FlyWheel.

Building a SaaS product takes a weekend now. Selling it takes a year. A founder's note on why go-to-market broke for solo founders and builders, and what we built about it.

Growth

Marketing & Selling is not easy, but I think otherwise

Everyone says building is easy now and selling is hard. A systems view of the B2B funnel, social strategy, email, agencies, and AI that says otherwise.

Growth

Does cold email still work in 2026?

Yes, but not the way most founders run it. What killed mass email, what targeted outbound looks like now, the deliverability craft nobody warns you about, and when to let Cafiyn FlyWheel run it for you.

Growth

B2B lead generation for startups in 2026

How startups build B2B pipeline with no brand, no budget, and no sales team: the honest DIY playbook, what agencies really cost, and the SaaS-priced model priced in Wheels from $29/mo.

Growth

How to get your first 10 B2B customers in 2026

Four realistic paths from launched app to your first 10 paying B2B customers, what each costs a solo founder with no network, and how Cafiyn FlyWheel runs the whole acquisition loop as straight SaaS from $29/mo.

AI Strategy

Is vibe coding safe? The 2026 security risks and best practices

Vibe coding ships fast and breaks in predictable ways. Here is what the 2026 research, the real breaches, and a practical checklist say about doing it safely, and where Cafiyn fits in.

Operations

The structured approach to customer-first execution

Most companies say customer-first; few are structured about it. The operating cadence, the three rituals, and the metrics that make it a practice, not a poster.

Founder Notes

Why we built Cafiyn the way we did

A short founder note on why we made several focused offerings instead of one platform, why we stay small, and what 'execution over theatre' means when you have to live by it.

Engineering

Ten years of enterprise systems: five rules I would not break again

A decade of building enterprise platforms at Zoho, Freshworks, and Iris. The mistakes I watched compound, and the five rules I now apply without exception.

AI Strategy

The AI-native vs AI-bolted-on divide is becoming a moat

Every SaaS is bolting on an AI assistant. That worked through 2025. AI-native rivals with a tenth of the surface area are arriving, and the divide is compounding. What to do about it.

Customer Success

Customer success is operations, not a department

Most CS teams are set up to fail because they are framed as a department with metrics, when the function is actually operations spanning sales, product, and support. What changes when you treat it that way.

Leadership

From zero to one to ten: the operating model shifts you can't skip

Each stage of company growth needs a different operating model. The patterns I learned the hard way taking ventures from zero to fifty million, and the ones founders try to skip.

Engineering

Scalable systems start with the smallest viable architecture

Future-proofing kills more architectures than scale ever does. A practical rule of thumb for when to invest in scalability, drawn from a decade at Zoho, Freshworks, and inside Iris.

Operations

Why most operational software fails after eighteen months

Operational tools rarely fail at launch. They fail eighteen months in, when the team has quietly built workarounds and stopped trusting the system. Why that pattern repeats, and how to design against it.