Setting Up ElevenLabs API: From Zero to Production
Why ElevenLabs is a Game‑Changer for Voice AI If you’ve been dabbling in text‑to‑speech (TTS) or voice cloning, you know the pain points: low‑qualit…
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Phone Number Parsing 101: What Area Codes Like 785 Actually Tell You
If you've ever built a signup form, you know phone numbers are deceptively tricky. Users type them a dozen different ways, and your validator has to…
Export App Store and Google Play reviews to Excel and find the top complaints
Disclosure: I built the reviews scraper used in this post and earn money when people run it. The pandas part works with reviews from any source. App…
How to Generate Images in Claude Code (2026)
Claude Code is fantastic at writing code, fixing bugs, and explaining things. But ask it to draw you a picture and it'll politely tell you it can't…
Evaluate RAG retrieval before changing your chatbot prompt
Before tuning a prompt, check if the retriever actually surfaced the evidence. A fluent answer often hides a missing document. And a retrieved docum…
Create an AI Dubbing Tool for Video Content
Why Build Your Own AI Dubbing Tool? If you’ve ever needed to localize a video, add a narration track, or simply replace a shaky on‑camera voice, doi…
Engineering practice: git, code, tests · 1. Git as a thinking tool
Engineering practice: git, code, tests · Chapter 1 of 12 · Craft · new chapter every Sunday night By the end of this chapter: Write commits that exp…
A Practical Guide to SQL Joins, Subqueries, CTEs, and Window Functions.
A hospital database rarely stores every useful detail in one table. Patient details may be stored separately from visit records. Doctor, department,…
PhotoCraft Review: I Tested the Free, Open-Source Photoshop Alternative With 4 Real Edits
Photoshop costs $22.99 a month . PhotoCraft costs $0 , it's open source, and in under three weeks it passed 66,000 stars on GitHub . So I put it to…
How to play Morse code in the browser with the Web Audio API
A Morse code player only needs a few pieces: an oscillator for the tone, a gain node to turn it on and off, and a schedule for the dots, dashes and…
Save JSON from a cron job or GitHub Action
Save a JSON result from a scheduled job to a stable URL, then read it from a static page or another script. This guide uses jstash JSON Bins for a s…
Excel weekday from a date with TEXT: Mon, Tue, Wed in one formula
Schedules, shift rotas and delivery logs often need the day of the week beside each date. If you fill that column by looking at a calendar and typin…
Exploring Hospital Data: Window Functions, Joins, CTEs and Subqueries
Introduction While working on my hospital dataset, I realised that SQL is not just about retrieving data. It can also help me compare hospital visit…
Cronbach's Alpha Explained: Formula, Worked Example, Python/R Code, and a Free Calculator
You built a survey with several questions that are supposed to measure the same thing (say, "job satisfaction" or "stats anxiety"). Before you avera…
A fast website with a blog, search and a contact form, hosted free
Originally published on the BootForm blog . I work on BootForm, the form backend used in step 4; the templates are free and MIT licensed. In short:…
How to Set Variables in a Laravel Blade Template
Need to create a variable inside a Blade template, calculate a value, and display it without getting an Undefined variable error? You can do it dire…
A One-Page SOP for a Shared Free AI Bench
A shared free AI bench rarely dies from an empty allowance. It dies from an unowned next step. The developer conversation this week mixed two moods.…
Fixing Invalid JSON in Tag Schema: Practical Guide and Syntax Rules
The "invalid JSON in tag schema" error occurs when the code inside a {% schema %} tag violates strict JSON syntax rules, most commonly because of tr…
Invalid JSON Format Examples: Rules, Common Errors, and Syntax Fixes
An invalid JSON format is any text payload that breaches standard JSON structural rules, such as using single quotes, omitting double quotes on keys…
48-Hour Field Notes: The Batch Worker Vanished and My Re-Run Redid Every Item
Two days ago I started a batch of prompt evaluations, closed the laptop lid, and assumed the free server would keep chewing through the queue while…
What is an AI agent harness?
By Harshith Vaddiparthy. Originally published in my AI agent harness guide . An AI agent harness is the software around a model that lets it do work…
How Streaming TTS Works Under the Hood
What “Streaming” Means for TTS When you ask a voice assistant to read a paragraph, you expect the audio to start playing almost instantly, not after…
Working with S3 Object Tags in Buckets: SET, MERGE and CLEAR
A practical walkthrough for keeping Amazon S3 objects organized without changing what is inside the files. Object tags are easy to overlook when you…
Merging PDFs in the browser: no server, no upload
Merging PDFs sounds like server work, but the PDF format is just a structured binary file — and libraries like pdf-lib can read and write it entirel…
Google Workspace Studio Tutorial: Batch Lead Outreach with the "Repeat for each" Loop
If you work in sales or run your own business, you probably have a Google Sheet somewhere that acts as your lead tracker. Leads come in from your we…
The blockchain bootcamp · 1. The vocabulary
The blockchain bootcamp · Chapter 1 of 18 · Blockchain · new chapter every Saturday evening By the end of this chapter: Define block, chain, hash, n…
JSON vs ConfigFile vs Resource in Godot 4 — which save format and when
Godot 4 gives you three sanctioned ways to write a save file, and the docs describe each one without ever telling you which to pick. So you pick the…
Why Your GA4 Regex Keeps Failing — 2 Rules That Fix 99% of It
If you ever pasted a regex into Google Analytics 4 and got zero rows back while the exact same pattern works fine in your editor — you didn't write…
How to Read a SKILL.md in 60 Seconds
You're not going to fully evaluate a skill before installing it. You're going to rule out the four or five expensive mistakes — in the order that ac…
How to run a local AI model that actually works on old hardware
How to run a local AI model that actually works on old hardware I have been running language models locally on a 2012 laptop with 4 cores, 8 GB of R…