Appreciation Post: Debate TelloDB Is So Cool
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Tenant-Aware Speech-to-Text Explained — MP3/WAV File Uploads Across US/EU in 2026
Short answer: for a small fintech product that turns reviewer voice notes into structured code findings, start with one synchronous speech-to-text file-upload adapter for MP3 and WAV, but write every upload to a tenant l
'We'll fix it later' is a loan. Here's the interest rate
Every time someone on your team says "we'll clean it up later," they're taking out a loan. The problem is that almost nobody checks the interest rate — until it bankrupts an entire sprint. Technical debt is the most-used
The actual cost of shipping an iOS app in 2026
"How much does it cost to put an app on the App Store" gets answered inconsistently online because most answers either only count Apple's fee, or only count hardware, or quietly assume you're renting expensive cloud infr
GitHub Actions' free macOS minutes, explained
GitHub Actions is GitHub's built-in CI/CD system — it spins up a fresh virtual machine, runs whatever commands you tell it to, and tears the machine down when it's done. It supports Linux, Windows, and macOS runners. The
Context Is a Platform Capability Now
Watch a developer start an agent session on real enterprise work and you will see a ritual. Before the first useful prompt, they gather. They paste the deployment standard, link the runbook, and explain what the critical
Why your TestFlight build doesn't show up after a successful upload
You push, the build runs, the archive and export steps succeed, the upload step succeeds, the workflow finishes green. You open App Store Connect to check on it and TestFlight shows... the previous build. Not a failed bu
Don't trust "Done." — forcing AI agents to re-fetch reality before they report completion
"Inserted the rows. Done." — except not a single row had landed I hand a lot of my client work to AI agents. Production deploys, report generation, bulk data inserts. Every procedure that works gets turned into a skill,
Fix "No signing certificate matching team ID" in GitHub Actions
If you're building an iOS app in GitHub Actions (or any headless CI, really) and your archive/export step fails with something like No signing certificate "iOS Distribution" matching team ID "XXXXXXXXXX" with a private k
React useLatest Hook: Read Fresh State in Async Callbacks (2026)
Here's an autosave button that lies to the user: function Editor ({ docId }: { docId : string }) { const [ text , setText ] = useState ( "" ); const [ status , setStatus ] = useState < " idle " | " saving " | " saved
How to build and ship an iOS app without a Mac
If you want to put an app on the App Store, Apple requires you to build and sign it with Xcode, and Xcode only runs on macOS. That's true no matter what you built the app with — Swift, React Native, Capacitor, Flutter, w
How I Cut MCP Token Usage by 91% (and Learned a Humbling Lesson About Tokenizers)
The Problem When you add MCP servers to your AI coding agent, each one dumps its full JSON schema into context. 255 tools across all servers = 39,964 tokens. On a 128K context window, that's 31% gone before you type a si
When an Agent Tool Call Becomes a Real Request
1. Nothing crashed A recruiter asked for candidates published since a date. The assistant answered with confidence, and the count it gave looked plausible. That was the bug. The search ran, results came back, and nothing
The AI revolution that fits on your phone
While everyone argues about trillion-parameter giants in distant datacenters, the most important shift in AI is quieter: a capable model small enough to run on your phone, with the wifi switched off. The headlines chase
Single Agent vs Multi-Agent Systems: When to Split
A founder at a workflow-automation startup called me last month. His team had built a working AI agent that handled customer onboarding — one agent, a set of tools, a good system prompt. It worked. Then he read the frame
ARPU Is the Wrong Shape for a Multi-Surface Ad Business
A lot of company-data schemas have an arpu field: total revenue divided by monthly active users, stored as one number per company per period. It's a fine number to report. It's a bad number to model a business on, and Me
Give a Free Model a Latency Budget Before You Let It Into CI
I keep hitting the same failure pattern. A merge request passes every test. Then the pipeline stalls. Nothing in the diff changed. The free model route I call for a review is just having a slow minute. Same prompt. Same
Proof-of-Fix in GSC: An Architecture for Provable Vulnerability Remediation Verification
Abstract GSC is a self-learning AppSec platform implementing the full pipeline detect → prove → fix → verify → heal → predict . Its defining feature is Proof-of-Fix (PoF) : a mechanism that does not suggest a fix but pro
A Deny-by-Default Manifest for AI-Generated Services on a Free Server
Why this is worth reading: a free model can hand you a working service in one prompt, and a free server can publish it before you have read the control flow. The cheap path tends to skip the permissions conversation. Thi
Paywall Any API Endpoint With Two Prices: Sats or Compute
You built an API. It works. Then the scrapers show up. Not paying customers. Bots hammering your endpoint a thousand times a minute, running up your compute bill, and giving you nothing back. The usual fix is API keys, a
Bloom Filters
One-liner: A probabilistic data structure that tells you if an element is definitely not in a set, or possibly in a set — using very little memory. 📌 The Problem You have 1 billion URLs in a database. Before adding a ne
10 Reasons Every Developer Should Learn Go (Golang) in 2026 🚀
The programming language that's powering the cloud revolution. Every year, developers ask the same question: "Which programming language should I learn next?" Some people recommend Python. Others suggest JavaScript or Ru
7 Node.js Checks for Compatible Image Generation in 2026 (Provider Fallback)
For a B2B SaaS system that scores candidates against a job rubric, keep the structured score as the system of record and treat every generated scorecard image as a replaceable projection. Provider adapters can live in th
Your Browser Automation Clicks Might Be Landing 25% Off — And Nothing Will Tell You
I spent a day pointing an AI agent at a browser to publish one product across four marketplaces. Most of it worked. The parts that didn't work failed in the worst possible way: silently , with no error, no exception, and
Developers you build for the future...Don't forget to be inclusive!
Developers you build for the future...Don't forget to be inclusive! I build things for blind people. I'm a braille transcriber. I work in accessibility every day. Last January, at an NFB chapter meeting, a member walked
An OpenAI flagship lost 38% of its daily usage in three days — then set three straight all-time highs
Everyone publishes AI model leaderboards. Almost nobody publishes the day-level curve — and the curve is where the actual story is. At whatstrending.ai we snapshot every model's daily request count from OpenRouter's usag
NestJS Error Capture: Tracking HTTP Exceptions Through Filter and Interceptor Boundaries
For a production logistics agent, error tracking should use one failure envelope at every execution boundary, then attach cost and latency before the boundary reports or rethrows the failure. An HTTP exception filter alo
Stop Sending Your Vitals to the Cloud: Running Llama-3 Locally in the Browser with WebLLM & WebGPU 🥑
Privacy is the ultimate "final boss" in HealthTech. When users record sensitive medical logs, the last thing they want is their data being used to train a massive corporate model. Today, we are pushing the boundaries of
In the Beginning...
Working with Modern AIs The day I met Claude was a dark day It was a full-stack project that I wasn't familiar with any of the tools being used. The authentication was fucked and I was thrown into the deep end to try to
How to Build a Real-Time Markdown Previewer with Synchronized Scrolling
While working on a side project recently, I found myself constantly switching between my editor and a browser tab to check how my Markdown rendered. I was writing documentation for a small library, and every time I wante
A stale response can quietly break a recommendation tool
A recommendation page can perform the correct calculation and still show the wrong result. The failure happens when two valid requests finish in the wrong order. Consider a player who starts a Members search, then switch
Building a Multi-Agent System in TypeScript
Single agents hit real limits in production. Long tasks exceed context windows. Complex goals need different tools at different stages. Sequential reasoning is slow when subtasks are independent. Multi-agent systems solv
Free Signup vs Production Access: What Self-Serve PSD2 Providers Actually Gate
"Self-serve" is doing a lot of work Every PSD2 account-information provider markets some version of "get started in minutes." What varies — enormously — is what you can actually do before a human from sales gets involved
Your AI Agent Doesn't Need More Memory. It Needs Receipts.
An AI agent can remember a 30-page conversation and still perform the same action twice. It sends a request. The connection times out. The agent remembers the goal, the plan, and the tool call—but not whether the outside
Add human approval to a LangChain agent in 5 minutes
Add human approval to a LangChain agent in 5 minutes Your agent can send the email. That's the whole problem. A month ago it could only draft one. Now it has a tool that actually calls the API, and somewhere between "dra
Qdrant Recall Inconsistency: It Took 300 Test Runs to Discover the Index Wasn't Refreshed
At 2 AM, a user reported that the AI Agent suddenly forgot details of a project we discussed yesterday. I groggily opened Grafana and saw the memory recall rate had dropped from 98% to 60%. My first thought was the embed
The most boring service in the stack
The most reliable part of a stack is rarely the part anyone shows off. It has no clever layer to point at. That is the whole reason it never breaks. A payment service I want to walk through this week is a clean example o
Capacity Planning Without ML: The 80/20 Approach
There's a small industry of vendors that want to sell you machine learning capacity planning. For 95% of teams, you don't need it. You need a spreadsheet, an honest growth assumption, and a buffer. Here's the practical v
I Asked the Same Question to 7 Local LLMs — Speed and Intelligence Didn't Line Up: DGX Spark Benchmarks
Originally published on my Substack . I'm a Microsoft MVP based in Japan, writing in English about the AI agent systems I actually run in production. Local AI models keep multiplying. But comparing numbers on model cards
Software marketplaces have forgotten who they're supposed to serve
I've spent a lot of time thinking about software marketplaces. And the more I looked at them, the more I kept coming back to the same question: When did the marketplace become the most important party in the transaction?