505 field notes for people who ship.

No listicles, no AI slop. Every post comes from production code and real benchmarks — specific versions, real numbers, shipped weekly.

We only write about what we deployed.We only link to what we bought.We name names when something sucks.

505 notes

Tool Reviews8 min read

Best AI Prompt Marketplaces in India (2026) — Compared

For a buyer in India, the AI prompt marketplace question is really a payment question. Most big prompt stores price in USD and take only international cards — no UPI, plus an FX markup. Here is how PromptBase, Gumroad, Etsy, PromptHero and WOWHOW actually compare on currency, checkout, and whether you pay once or subscribe.

WOWHOWAug 4

Tutorials12 min

We Audited Our Own MCP Server Against 2026's 313 CVE Classes

We pointed a real security audit at india-stack-mcp, the 536-line stdio MCP server we run in production for GST validation, IFSC lookups, and tax calculations. Four vulnerability classes, four different verdicts, and one unmitigated finding we're publishing with the line number attached.

WOWHOW

Jul 27

Industry Insights8 min

Claude's Rupee Pricing Has No UPI: The Real Cost for Devs

Anthropic launched INR pricing for Claude on July 13, 2026 — card and app-store billing only, no UPI. Three outlets already reported the gap. None of them ran the decision math against ChatGPT Go, or found the one workaround Anthropic's own billing options already support.

WOWHOW

Jul 27

Tutorials12 min

MCP 2026-07-28 Auth RC: 3 Changes Hit Your Tool Gateway

The MCP 2026-07-28 release candidate ships three auth changes — issuer validation, typed Dynamic Client Registration, and mandatory Protected Resource Metadata — that land differently once you're running a production tool gateway instead of a single client. Here's how each one touches multi-server composition, circuit breakers, and tool allowlists in a real deployment.

WOWHOW

Jul 27

Productivity6 min

Best Zapier Templates & Automation Workflows for 2026

Zapier bills per action step, so a template is only as good as its cost per run. Lead-capture flows earn their tasks back many times over; social cross-posting burns a month of budget in a weekend. Here is how to pick templates by the math, not the gallery screenshot.

WOWHOW

Jul 20

Tutorials6 min

CLAUDE.md Rules That Survive Production: What a Year Taught Us

The difference between a CLAUDE.md that works and one that gets ignored is not writing quality — it is enforcement, specificity, and scars. After a year of running a real store on Claude Code, here is the anatomy of rules that hold.

WOWHOW

Jul 19

Productivity6 min

Best Obsidian Vault Templates & Starter Kits, Ranked for 2026

Obsidian gives you an empty folder and infinite freedom — which is exactly why most vaults are abandoned by week two. The fix is starting from a structure someone already debugged. Here are the vault templates worth starting from, ranked by the problem they solve.

WOWHOW

Jul 19

Tutorials6 min

Best Supabase + Next.js Starter Kits in 2026 (Auth, Stripe, SaaS)

The Supabase + Next.js boilerplate market sorted itself into two clear camps this year: speed kits for solo founders and architecture platforms for teams. Picking the wrong camp costs more than the license fee — here is the map.

WOWHOW

Jul 19

Tutorials7 min

gstack Review 2026: What Garry Tan's Stack Doesn't Cover

Garry Tan's gstack is the most-starred Claude Code configuration on GitHub, and it earns it. But it's an engineering stack by design — and if you run a business on Claude Code, engineering is only half the job. A field comparison from an operator, not a spectator.

WOWHOW

Jul 19

Tutorials6 min

We Packaged the Claude Code Config That Runs a Real Store

For a year, Claude Code has been the architect, builder, reviewer, deployer, and growth team behind this site. The configuration grew scar by scar — and it turned out to be worth more than most of our products. So we sanitized it and packaged it.

WOWHOW

Jul 19

Finance7 min

84-Month Car Loans Cost $6,208 More — Here Is the Math

A third of new car loans now run longer than six years. We ran the average Experian loan — $43,925 at 6.39% — through every term from 36 to 84 months. The monthly payment drops 24%. The interest bill climbs 42%. And on an 84-month loan you owe more than the car is worth for 30 of those months.

WOWHOW

Jul 16

Tutorials5 min

How to Write Suno Prompts That Work: Style, Tags & Structure

Suno Custom Mode has three fields, not one — and mixing them up is why generations come out generic. Here is how to structure Style of Music, Lyrics, and Exclude Styles so you get the song you hear in your head.

WOWHOW

Jul 6

Tutorials6 min

GST 2.0 Rate Changes: Old vs New Rates on 170+ Items (2026)

The 22 September 2025 GST overhaul killed the 12% and 28% slabs. Cement and small cars dropped to 18%, individual insurance went exempt — but group insurance did not, and the tobacco hike was quietly deferred. Here is what actually changed.

WOWHOW

Jul 6

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505 field notes for people who ship.

Best AI Prompt Marketplaces in India (2026) — Compared

We Audited Our Own MCP Server Against 2026's 313 CVE Classes

Claude's Rupee Pricing Has No UPI: The Real Cost for Devs

MCP 2026-07-28 Auth RC: 3 Changes Hit Your Tool Gateway

Best Zapier Templates & Automation Workflows for 2026

CLAUDE.md Rules That Survive Production: What a Year Taught Us

Best Obsidian Vault Templates & Starter Kits, Ranked for 2026

Best Supabase + Next.js Starter Kits in 2026 (Auth, Stripe, SaaS)

gstack Review 2026: What Garry Tan's Stack Doesn't Cover

We Packaged the Claude Code Config That Runs a Real Store

84-Month Car Loans Cost $6,208 More — Here Is the Math

How to Write Suno Prompts That Work: Style, Tags & Structure

GST 2.0 Rate Changes: Old vs New Rates on 170+ Items (2026)

Need production-ready templates?

All articles

505 field notes for people who ship.

Best AI Prompt Marketplaces in India (2026) — Compared

We Audited Our Own MCP Server Against 2026's 313 CVE Classes

Claude's Rupee Pricing Has No UPI: The Real Cost for Devs

MCP 2026-07-28 Auth RC: 3 Changes Hit Your Tool Gateway

Best Zapier Templates & Automation Workflows for 2026

CLAUDE.md Rules That Survive Production: What a Year Taught Us

Best Obsidian Vault Templates & Starter Kits, Ranked for 2026

Best Supabase + Next.js Starter Kits in 2026 (Auth, Stripe, SaaS)

gstack Review 2026: What Garry Tan's Stack Doesn't Cover

We Packaged the Claude Code Config That Runs a Real Store

84-Month Car Loans Cost $6,208 More — Here Is the Math

How to Write Suno Prompts That Work: Style, Tags & Structure

GST 2.0 Rate Changes: Old vs New Rates on 170+ Items (2026)

Need production-ready templates?

All articles

Best AI Prompt Marketplaces in India (2026) — Compared

We Audited Our Own MCP Server Against 2026's 313 CVE Classes

Claude's Rupee Pricing Has No UPI: The Real Cost for Devs

MCP 2026-07-28 Auth RC: 3 Changes Hit Your Tool Gateway

Best Zapier Templates & Automation Workflows for 2026

CLAUDE.md Rules That Survive Production: What a Year Taught Us

Best Obsidian Vault Templates & Starter Kits, Ranked for 2026

Best Supabase + Next.js Starter Kits in 2026 (Auth, Stripe, SaaS)

gstack Review 2026: What Garry Tan's Stack Doesn't Cover

We Packaged the Claude Code Config That Runs a Real Store

84-Month Car Loans Cost $6,208 More — Here Is the Math

How to Write Suno Prompts That Work: Style, Tags & Structure

GST 2.0 Rate Changes: Old vs New Rates on 170+ Items (2026)

One note, every Monday. 7am IST. Zero fluff.

Need production-ready templates?

All articles

Best AI Prompt Marketplaces in India (2026) — Compared

We Audited Our Own MCP Server Against 2026's 313 CVE Classes

Claude's Rupee Pricing Has No UPI: The Real Cost for Devs

MCP 2026-07-28 Auth RC: 3 Changes Hit Your Tool Gateway

Best Zapier Templates & Automation Workflows for 2026

CLAUDE.md Rules That Survive Production: What a Year Taught Us

Best Obsidian Vault Templates & Starter Kits, Ranked for 2026

Best Supabase + Next.js Starter Kits in 2026 (Auth, Stripe, SaaS)

gstack Review 2026: What Garry Tan's Stack Doesn't Cover

We Packaged the Claude Code Config That Runs a Real Store

84-Month Car Loans Cost $6,208 More — Here Is the Math

How to Write Suno Prompts That Work: Style, Tags & Structure

GST 2.0 Rate Changes: Old vs New Rates on 170+ Items (2026)

One note, every Monday. 7am IST. Zero fluff.

Need production-ready templates?

All articles