Field notes.
Short essays on building software without a team.
§01
2026-07-23
Abhiraj Sakargaye
Should You Validate Before You Build?.
Validate demand before you pay to build: talk to 20 people using the exact pitch you'd sell with, then stay silent and read their first reaction. Add a landing page, waitlist, or pre-sale that asks for something real — money, a date, an email tied to a problem. Stop validating once someone has said yes with a deposit, a signed pilot, or 20+ unprompted requests to use it.
- validation
- mvp
- founders
§02
2026-07-22
Naman Barkiya
What a Post-MVP Dev Retainer Actually Costs (And What You Get).
A post-MVP dev retainer runs $500–$1,500/month for maintenance-only, $2,500–$5,000/month for active iteration (20–40 hours), and $5,000–$8,000/month for a fractional team — plus $100–$700/month in infrastructure, totalling 15–20% of the original build cost per year.
- hiring
- cost
- post-mvp
- retainer
§03
2026-07-21
Abhiraj Sakargaye
5 MVP development companies compared: what you get at $7k, $15k, and $60k.
The $7k productized shops (HouseofMVPs, VYANIS) deliver a template build in 14 days — right for throwaway validation, wrong for anything with real complexity. The $15k–$60k founder-led studios (Altar.io, SingleBit) ship a scoped product in 6–16 weeks with real integrations. US agencies run $80k+ for equivalent capability at US market rates. The right tier matches your scope, your budget, and what you can afford to rebuild if it goes wrong.
- hiring
- agency
- comparison
- mvp
§04
2026-07-20
Abhiraj Sakargaye
Should you vibe code your MVP or hire a developer in 2026?.
Vibe coding — using AI tools like Cursor to build your product yourself — works for throwaway validation and contained prototypes. It breaks at the first real integration, when the codebase accumulates without coherent architecture, or when security obligations arrive. The inflection point is when the founder can no longer evaluate what the AI produced.
- ai
- mvp
- hiring
- vibe-coding
§05
2026-07-19
Naman Barkiya
Halisi Marketing in seven days: full-stack, bilingual, three cuts.
Halisi Marketing — an IL/US marketing agency — went from a static site with missing messaging to a full-stack bilingual rebuild in seven days: custom homepage animation, Hebrew and English with RTL support via logical CSS properties, copy rewritten across four pages, and three features cut (CMS, testimonials, blog) with each cut validated a year later.
- case-study
- web
- bilingual
- timeline
§06
2026-07-18
Naman Barkiya
What does fixing a healthcare consultant's digital credibility gap look like?.
HospiHealth — a hospital consulting firm — went from a digital footprint that hid the founder's expertise to a live site in eight weeks: a founder-credibility page framed as an argument, a structured job-application portal, and a custom admin for document-sensitive candidate data, with a marketplace idea cut in week one and a SaaS tool rejected on compliance grounds.
- case-study
- healthcare
- full-stack
- agency
§07
2026-07-16
Naman Barkiya
LaunchProd in ten weeks: four decisions, two cuts, one mistake.
LaunchProd — a Carnegie Mellon University-founded creator-economy AI platform — went from blank repo to production RAG system with live users in ten weeks, with two features cut in week one (social profiles and direct messaging), a refuse-to-answer retrieval threshold as the most important product decision, and one clear lesson: build the evaluation harness in week one, not month three.
- case-study
- ai
- rag
- mvp
§08
2026-07-15
Abhiraj Sakargaye
How do you scope an MVP? The one-page brief that gets honest quotes.
An MVP scope document needs five things on one page: the problem and who has it, the user types and their most critical action, three to five features that test the hypothesis, an explicit non-goals list, and one measurable success condition — written concisely enough to fit on one page, because anything that doesn't fit isn't scoped yet.
- mvp
- scoping
- hiring
- process
§09
2026-07-14
Naman Barkiya
The stack we use to ship MVPs in 6 to 16 weeks.
A production MVP in 2026 runs on Next.js with App Router, Postgres (Supabase or Neon), Drizzle, Tailwind with shadcn/ui, Clerk or Supabase Auth, and Vercel — a combination that ships in 6–16 weeks, transfers cleanly to an in-house team without a rebuild, and keeps every account under the founder's control from day one.
- engineering
- stack
- mvp
- tools
§010
2026-07-12
Naman Barkiya
RAG vs fine-tuning vs prompting: costs and the pick rule.
For most startup products, prompting solves the problem in 2–5 engineering days; RAG is the right upgrade when answers need grounding in private data (2–4 weeks, 1.5–3× the runtime cost); fine-tuning is the last resort — 4–12 weeks of engineering and labelled-data collection — appropriate only when evaluation proves the first two cannot reach required precision.
- ai
- rag
- decision
- architecture
§011
2026-07-11
Naman Barkiya
What a custom AI chatbot or agent costs in 2026.
A custom docs-grounded chatbot costs $8,000–$15,000, retrieval over live private data (RAG) $15,000–$40,000, and an agent that owns a full workflow $40,000–$80,000 in 2026 — the spread within each band is driven by integration count and evaluation infrastructure, not model choice.
- ai
- cost
- chatbots
- agents
- rag
§012
2026-07-11
Abhiraj Sakargaye
Technical co-founder or an agency: who should build your MVP?.
A technical co-founder trades 30–50% permanent equity for a decade of technical judgment and takes months to find; an agency or founder-led studio trades a fixed fee ($15,000–$60,000) for a shipped, founder-owned MVP in 6–16 weeks. Choose the co-founder when proprietary technology is the company's core moat; choose the build partner when validated learning needs to come first.
- decision
- cofounder
- mvp
- hiring
§013
2026-07-10
Naman Barkiya
Offshore MVP from India: what it costs and what goes wrong.
Offshore MVP development from India costs $15,000–$60,000 — roughly a third of US agency pricing at equivalent scope. The savings hold when you have a direct line to the engineer writing your code, a tight spec, and a clear post-launch plan; they evaporate without all three.
- hiring
- offshore
- mvp
- india
§014
2026-07-07
Naman Barkiya
Your MVP is too big. Here's how I'd cut it in one sitting..
An MVP is too big when it contains features that don't test the core hypothesis — the cut rule is three questions applied in order: does this feature test the hypothesis, can the product exist without it, and did a real user ask for it? Most feature lists pass this filter on 70–80% of items, which is why well-scoped MVPs typically ship with eight to twelve features instead of forty.
- mvp
- scoping
- product
- planning
§015
2026-07-05
Naman Barkiya
ONETAPP build postmortem: four calls, three cuts, ten weeks.
ONETAPP is a cross-platform gaming rewards platform — Electron desktop app, landing site, user panel, and admin dashboard — built from concept to live cohort in ten weeks, with three features cut in week one (mobile, social leaderboard, publisher API) because none had users to validate them at launch.
- case-study
- gaming
- desktop
- mvp
§016
2026-07-03
Naman Barkiya
Who owns the code when you hire a developer?.
When you hire a developer, you own all intellectual property from the moment it is written — not upon final payment. The correct contract clause reads 'IP vests in the client upon creation,' the repo lives under your organisation's account from day one with you as admin, and every contract needs an exit clause covering immediate IP assignment, partial refunds at milestone boundaries, and a two-week handover window.
- hiring
- contracts
- ip
- agency
§017
2026-07-01
Naman Barkiya
4 questions before adding AI to your product.
A product needs AI if it processes language or unstructured data, cannot be answered by a lookup or filter, has an evaluation method to confirm correct output, and justifies the inference cost — features that fail two or more of those four conditions are better served by a simpler approach.
- ai
- mvp
- decision
- product
§018
2026-06-29
Abhiraj Sakargaye
Never outsource your core: the honest case for building your first version with a studio.
For a startup in the validation stage, building your first version with an outside studio is the most defensible choice — lower cost than in-house hiring, faster than finding a technical co-founder, and purpose-built to be handed over once the bet is proven. The core protection argument is right; the timing assumption behind it is wrong.
- hiring
- mvp
- outsourcing
- process
§019
2026-06-27
Abhiraj Sakargaye
What to expect from a founder-led product studio: a transparent breakdown.
A founder-led product studio is a small team where the founders stay in the work — writing code, reviewing design, taking calls — rather than managing a delivery team. At SingleBit, that means two founders, four or fewer active engagements per co-founder, a staging URL on day one, and full IP ownership from the first commit.
- agency
- process
- hiring
- mvp
§020
2026-06-25
Abhiraj Sakargaye
How does a non-technical founder actually build an MVP?.
A non-technical founder with a real product to build gets the most reliable outcome from a product studio ($15,000–$60,000, 6–16 weeks); no-code fits throwaway validation, a freelancer fits a contained scope you can manage yourself, and a technical co-founder is the highest ceiling but takes three to six months to find and costs equity from day zero.
- mvp
- hiring
- non-technical
- decision
§021
2026-06-23
Naman Barkiya
How long an MVP takes: a week-by-week breakdown for 2026.
A scoped MVP with one user type and three to five core features takes six to ten weeks. Add a second user type, a payments layer, or custom admin and it moves to ten to sixteen weeks. Six months almost always means the scope was never defined — or the original quote lowballed to win the job.
- mvp
- timeline
- hiring
- process
§022
2026-06-21
Naman Barkiya
Why does the cheap developer end up costing more?.
Hiring cheap for an MVP costs $4,000–$12,000 upfront, but roughly 60% of cheap builds require a $25,000–$60,000 rebuild within 18 months — making the total cost ($35,000–$80,000) higher than a quality build would have cost from the start, and defensible only for throwaway prototypes you do not intend to grow.
- hiring
- mvp
- cost
- agency
§023
2026-06-19
Naman Barkiya
12 questions to ask a dev shop before you wire the deposit.
Before wiring any deposit to a dev shop, confirm twelve things: the named engineer, subcontracting disclosure, bus factor, IP ownership from commit one, repo access before handover, a written scope document, change-order process, post-launch cost, exit clause at milestone boundaries, hidden running costs, milestone payment triggers, and handover documentation. Studios that answer these cleanly are structurally different from those that avoid them.
- hiring
- checklist
- agency
- mvp
§024
2026-06-17
Naman Barkiya
What an MVP costs in 2026: a tiered breakdown.
An MVP in 2026 costs $5,000 to $120,000 across four tiers: no-code ($2,000–$10,000), freelancer ($8,000–$30,000), studio ($15,000–$60,000), and agency ($60,000+). The right spend is the minimum that answers whether users want the product.
- mvp
- cost
- hiring
- agency
§025
2026-06-15
Naman Barkiya
Dev shop, freelancer, or in-house: how to choose who builds your MVP.
For a first MVP a studio is usually the lowest-risk choice, a freelancer fits small self-managed scopes, and in-house makes sense only once the product is proven. Pick the option whose failure mode you can afford.
- mvp
- hiring
- agency
§026
2026-04-25
Abhiraj Sakargaye
Five things we decline to build, and why.
SingleBit declines work on five specific shapes: spec builds, account-manager layering, post-launch ghosting, client overload, and feature-list briefs. Every one of them quietly trades short-term revenue for long-term damage to the product.
- process
- agency
- principles
§027
2026-02-10
Naman Barkiya
Shipping is a skill.
Shipping is a discrete skill, separate from coding or design, and velocity compounds faster than either. A team shipping weekly gets four times the feedback loops of one shipping monthly.
- process
- velocity
- heuristics
§028
2026-01-22
Abhiraj Sakargaye
Contracts before code.
A build stays on budget when the contract, not the codebase, answers every scope question, which is why SingleBit front-loads a one-page scope document before any repo is cloned.
- process
- scoping
- contracts
§029
2025-11-22
Naman Barkiya
Our opinionated stack in 2026, and what we stopped using.
SingleBit's default product stack in 2026 is Next.js with App Router, Postgres, Drizzle, Tailwind with shadcn/ui, TanStack Query, and Clerk or Supabase Auth. The tools we stopped using include Prisma, Zustand-as-default, custom auth, and Notion-as-CMS.
- engineering
- stack
- tools
§030
2025-10-03
Naman Barkiya
The RAG architecture behind LaunchProd, and three things we'd do differently.
LaunchProd, a Carnegie Mellon University founded creator-economy AI startup, runs on a section-level retrieval pipeline with pgvector and a refuse-to-answer threshold. Simplifying from multi-tier chunking and reranking cut latency by roughly 35 percent without hurting output quality, because the original complexity was fighting itself.
- ai
- rag
- case-study
- architecture
§031
2025-06-21
Naman Barkiya
When to use RAG, when to fine-tune, and when to just use a good prompt.
Start with prompting. Add RAG when the product needs answers grounded in private data. Reach for fine-tuning only after the first two options have been exhausted and evaluation shows they were not enough. Most founders reach for fine-tuning first, which is the most expensive mistake they can make.
- ai
- architecture
- decision-tree
§032
2025-04-28
Abhiraj Sakargaye
Tirth: building a multi-faith pilgrimage platform when the market ran on WhatsApp.
Tirth launched into a US$40 billion pilgrimage market that runs on trust rather than transactions. Instead of building a booking platform, SingleBit built a trust-layer product that makes existing relationships discoverable and hands off to guides via WhatsApp. The guide network grew 4x in the first quarter through referral.
- case-study
- market-research
- product
§033
2025-03-09
Naman Barkiya
The real cost of a Framer vs WordPress vs Webflow decision.
Framer wins for design-led marketing sites with low content volume. Webflow wins for structured content with an editorial team of one to three. WordPress wins for commerce, high content volume, and multiple editors, but costs an hour a week in maintenance forever.
- engineering
- cms
- marketing-sites
§034
2025-01-18
Abhiraj Sakargaye
Your MVP is probably too big, and here's how to cut it in half.
Most MVPs land on our desk at roughly twice the scope they should ship with. Running the spec through three questions (core action, competitor-driven features, fear-driven features) reliably cuts scope in half, and the features that get cut are almost never the ones users miss.
- product
- scoping
- mvp
§035
2024-12-11
Naman Barkiya
How we shipped SIT Manager, the institute system two agencies stalled on.
SIT Manager replaced an eight-year legacy PHP monolith with a Next.js plus Postgres system in under eight weeks. Two previous agencies stalled for nine and six months respectively; SingleBit shipped the first working version in fourteen days and cut over to production with thirty minutes of downtime on a Sunday night.
- case-study
- migration
- engineering
§036
2024-10-08
Abhiraj Sakargaye
What our first two weeks with a new client actually look like.
SingleBit's first two weeks with a new client run on a fixed rhythm: a live staging URL on day one, Loom walkthroughs on day two, an uncomfortable scope conversation on day three, weekly Friday demos, and a written retrospective at the end of week two. The rhythm, held, is most of the engagement.
- process
- client-work
- cadence
§037
2024-08-22
Naman Barkiya
Why we ship a staging URL on day one (and what it costs when you don't).
SingleBit ships a live staging URL to the client before the kickoff call is over, every engagement. The URL removes the ability to hide, sets the cadence for the rest of the build, and turns scope questions from memory exercises into click-through demos.
- engineering
- process
- cadence
§038
2024-06-15
Abhiraj Sakargaye
What to ask a product studio before you sign anything.
Ten questions to ask any product studio before signing: who writes the code, show three shipped projects with founder contacts, how scope changes are handled, what the studio declines, who the single point of contact is, when the staging URL lands, what post-launch looks like, current client load, default stack and when they deviate, and the single biggest timeline risk.
- hiring
- checklist
- agency