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I'm an elementary school teacher in Korea and I build small tools for my own grading. The slowest part was never the grading itself. It was sorting a scanner batch where pages come out shuffled, rotated, and front and back mixed up. The fix that worked: print a small QR in the corner of every sheet. It carries the exam ID, the student number and the side. Then for each scanned page: Find the QR at any rotation and read who and which side it is. Use the QR position plus the table border to rotate

ListingForge: a local Gemma tool that drafts shop listings from product photos Hacktoberfest Open-Source AI Challenge Week 2: Side Hustle Submission 💸 Aakash Mehta Aakash Mehta Aakash Mehta Follow Oct 18 ListingForge: a local Gemma tool that drafts shop listings from product photos # hf26challenge # devchallenge # ai # opensource 5 reactions Add Comment 4 min read

Traditional chatbot flows rely on static decision trees ( Press 1 for Sales, Press 2 for Support ). While predictable, they create severe user friction when a prospect wants a personalized answer or needs to check order status, book an appointment, or check flight updates. By integrating OpenAI's Function Calling (Tools API) directly into your WhatsApp Cloud API webhook, your AI agent can converse naturally while executing backend API calls deterministically. In this architecture guide, we demon

Introduction Hi everyone! I am Allen, a first-year Bachelor of Science in Computer Science (BSCS) student. In this blog, I want to share why I chose Computer Science and what I hope to build in the future. Why I Choose Computer Science I chose Computer Science because I want to learn more about computers and technology. I want to understand how programs work and how people use technology in their daily lives. Before, I did not know much about programming. That is why I want to use my time in col

Small contractors shouldn't have to spend hours decoding government tender documents just to discover they're missing a critical requirement. That's the problem I'm trying to solve with TenderTrap , an AI-powered tender intelligence tool that helps contractors evaluate bid opportunities before investing time and resources in preparation. What I Built Government procurement can create real opportunities for small contractors and MSMEs, but tender documents are often lengthy, technical, and diffic

Solid Glass is a public GitHub project that packages a glass-inspired design system for AI applications as a stylesheet intended to work with shadcn/ui. For developers building chat and agent interfaces, its practical proposition is narrow but useful: the stylesheet targets the data-slot attributes and classes that existing shadcn/ui components already carry, so adoption is presented as a theme integration rather than a component rewrite. Source: Solid Glass repository A theme layer, not an AI f

After integrating Stripe, Reepay and Fenerum into production Laravel and Node.js systems, the same few problems come up every time. Here is what I do now. 1. Never trust the redirect Confirm payment state only through signed webhooks, and make your handlers idempotent so a retried event cannot create a second order. Store the gateway event id and verify the signature before touching your database. 2. Queue the slow work With Redis and Bull in Node.js, or Laravel queues, webhook endpoints answer

Review operations usually live in three places at once, an email tool that asks, a dashboard that filters, and a person who knows which. The Federal Trade Commission's Guides in 16 CFR part 255 describe the activity in a way that does not fit any of those three, because the paragraph about reviews is written as a list of verbs rather than as a rule about content. 255.2(d) is one long list of things an advertiser can do to a review. The verbs, in the order the rule gives them, are procure, suppre

A realtime channel should carry a current logistics device event to authorized dashboard clients; it should not be treated as the system that remembers that event. The operational rule is blunt: commit durable device state to a database or log, publish a small notification that identifies the new state, and make every reconnect read from the durable source before resuming the live stream. Scope each connection token to the tenant, facility, and permitted topic, because a browser holding a token

Decide What a Model May Draft Before It Writes: A Section Ownership Gate for Docs A model-drafted page fails in one of two ways: it invents a fact, or it quietly overstates a promise your team cannot keep. The first failure is cheap to catch, because somebody can check a fact against a source file. The second one survives review for months, because the sentence sounds exactly like the ones your best technical writer produces. So the useful question before drafting is not "is this paragraph good?

A lab that grades an agent run should never care which model produced that run. If your rubric silently changes when the free tier changes, you were grading the vendor, not the student. That is the whole thesis of this lab, and it fits in one sentence: record once, replay forever, grade offline. The failure I keep watching students repeat Every bootcamp cohort hits the same wall around week two. A student builds an agent loop against whatever model was free that morning. It works. They submit. T

My $79 Fixed-Price n8n Builds Are One Config File: How I Ship Custom Workflows Without Rewriting Them Part of my build-in-public series on running LLM workflows in n8n in production. This one is about the economics of custom work: how I sell fixed-price "built for you" n8n builds without every client turning into a rewrite. The trick is boring on purpose — the workflow never changes, only the config does. The problem with fixed-price custom work I sell fixed-price n8n builds (starting at $79) on

TanStack Start runs well on Cloudflare Workers. The official guides get you to "Hello world" quickly. The trouble starts when you add a database, file uploads and auth, because each of those touches the Workers runtime in a slightly different way. This post walks through a setup I use in production: one Worker that serves prerendered marketing pages as static assets and everything else from server code, with D1 (SQLite) through Drizzle, R2 for uploads, and better-auth for passwordless sign-in. E

Every case study on this site runs through the same loop: classify the request, write the spec, build to the spec, measure the result, promote what repeats, forget what doesn't. That loop had a working name — ShipLoop — a one-page protocol in CLAUDE.md , five skills in .claude/skills/ , and a scorecard that reads commits, DEVLOG headings, and session logs to measure how often each project actually followed the loop. Today the whole thing is open source. One line to install into any Claude Code p

A user emailed me a screenshot of their feedback report. Under "Communication," my scoring model had written: "Closed the answer with 'Thanks for watching,' which feels scripted and out of place in a live conversation." They never said it. They paused for about four seconds, decided they were done, and stopped talking. Whisper filled the silence for them, and then an LLM graded them on the words Whisper made up. This post covers Whisper hallucinations on silence: how often they happened in my pi

Claude Code Parallel Subagent Patterns: Fan-Out, Fan-In, and Synchronization Strategies That Actually Work This article was written with the assistance of AI, under human supervision and review. Most parallel subagent implementations fail because teams treat them like independent workers when they are actually interdependent processes sharing a single codebase. The result is duplicate work, context pollution, and merge conflicts that consume more time than serial execution would have taken. The

int age = 25 ; int * value = malloc ( sizeof ( int )); * value = 100 ; O que muda entre essas duas alocações? Se você já programou em C, provavelmente lembrou de stack, heap, ponteiros e da necessidade de chamar free . Se trabalha principalmente com JavaScript, talvez tenha pensado: “ainda bem que não preciso cuidar disso”. O JavaScript realmente abstrai boa parte desse trabalho. Mas entender memória continua ajudando a explicar por que dois objetos mudam juntos, por que uma cópia não ficou inde

Browser-Based Morse Practice Oscillator (and Why Morse Timing Is a Protocol-Design Masterclass) Project summary: A pocket-sized Morse code practice oscillator you can build in an evening — an Arduino Nano, a piezo buzzer, one push button, and the correct ITU timing — plus a browser-based decoder to check your sending. Everything fits in a mint tin. Total cost under $10. 1. Why bother learning Morse in 2026? Morse code turns 190 in 2026 (depending on which milestone you count — American Morse in

On 9 October, Anthropic published a report on actions its models took during evaluations and internal use that it did not intend. One of the four categories it lists: "Claude submitting a sensitive form on a real website when it should not have." In one case, Claude Haiku 4.5 "was instructed to complete a form up until the final submission stage, but to stop before actually submitting. Several times Claude mistakenly submitted the form instead, expecting there to be an additional confirmation pa

This is a submission for the Hacktoberfest Open-Source AI Challenge Week 2: Side Hustle What I Built Modern cybersecurity threats are evolving rapidly, but advanced security monitoring and Endpoint Detection and Response (EDR) solutions can be expensive and complex for independent DevOps engineers, freelancers, and small infrastructure teams. Traditional signature-based detection can also struggle with previously unseen threats for which no known signature exists. ZeroTrace is an AI-assisted, lo

This is a submission for the Hacktoberfest Open-Source AI Challenge Week 2: Side Hustle What I Built Overheard tells a maker, every morning, what people said on Reddit and Hacker News about the problems each of their products solves. It runs on your own laptop with an open-weight model and sends one short email per product: Worth a reply: people asking for a tool like yours, with a reply draft you can copy. The draft always says you built the product, and nothing is ever posted for you. Pain poi

What if the scoreboard had no delay? Hacktoberfest Open-Source AI Challenge Week 2: Side Hustle Submission 💸 Satvik Singh Satvik Singh Satvik Singh Follow Oct 16 What if the scoreboard had no delay? # devchallenge # hf26challenge # ai # python 56 reactions 3 comments 4 min read

By Alex Suarez · written for the Graph Hacks: Context for AI Agents hackathon (WeMakeDevs × FalkorDB) Live demo: https://lineagegate.fly.dev · Code: https://github.com/nightmoose/lineagegate I've been a data engineer since 1997. The tools have changed many times over: cron and shell scripts, then ETL suites, then Hadoop, then the cloud warehouse with dbt on top. One conversation hasn't changed in all that time: "Hey, we're changing amount to cents in the orders feed. That's fine, right?" Nobody

This is a submission for the Hacktoberfest Open-Source AI Challenge Week 2: Side Hustle What I Built I built GST Helper, a local-first AI workspace that helps a small business prepare selected GSTR-1 values from sales invoice PDFs. The demo company is BharatBiz, a fictional small business based in Bengaluru. The user starts by loading outward-sales invoice PDFs. GST Helper reads the invoices, extracts values, shows page evidence, and turns the documents into a guided GSTR-1 review flow. The curr

Originally published at: https://toolpilotpro.com/best-ai-tools-small-business 7 AI Tools That Actually Save a Small Business Time in 2026 If you run a small business, you already know the problem. Before lunch you have been the marketer, the support desk, the designer, and the bookkeeper. AI tools for small business earn their keep by taking over the repetitive parts of those jobs so a tiny team can operate like a much bigger one. Every tool below had to clear four bars: it solves a real weekly

Last month I had to demo an Android app on a screen share. My first plan was to hold the phone up to the webcam, which looked as bad as it sounds. So I went looking for a way to mirror the phone to my laptop, and two names came up again and again: Scrcpy and Vysor. I tried both, then compared my notes with a detailed Scrcpy vs Vysor breakdown on scrcpy.pro that includes a feature table, Vysor’s pricing plans, and version history for each tool. The site is built around a free, open-source mirrori

PostgreSQL 19 was supposed to ship in October. The release team now says general availability is November 19, with RC 2 on November 12 (postgresql.org’s RC 1 announcement has the dates). The reason is the interesting part. What happened According to The Register’s report, developers reverted or pulled between 8 and 10 significant features and pushed them to PostgreSQL 20. Some of them, like SQL/PGQ graph queries, had architectural issues that would have been hard to fix during beta. LLM-assisted

Why Ethics Matter in Voice Cloning Voice cloning is no longer a niche research project—it's a mainstream product feature in virtual assistants, gaming, and customer support. Every line of synthesized speech feels natural because the models have learned the nuances of human prosody, tone, and accent. As developers, we’re excited to build experiences that “talk” like us, but with great power comes great responsibility. Ignoring the ethical implications can lead to legal trouble, brand damage, and,

Short answer: choose hosted log aggregation that preserves one correlation ID from the Next.js request through the Node.js API and background job, keeps data in the required US or EU region, and makes a failed property checkout safe to replay after a rollback. Choice Prefer it when Reject it when Hosted aggregation with direct JSON ingestion One operator needs fast search, alerts, regional placement, and low maintenance Export, deletion, or replay drills fail your acceptance test Self-hosted log

Public building usually ends at the vanity metric. Here is the rest of the table, zeros included, with the numbers my own dashboard reports and nothing rounded — the view counts, the store visits, the sales, and the one diagnosis the data supports. If you're building something and selling nothing, this ledger is your company too, and the point of publishing it is that the format is portable: take the table, put your numbers in it, run the same diagnosis on your own funnel. The ledger, one week i

A construction WIP schedule computes earned revenue for each open job as contract price times percent complete , where percent complete is cost to date divided by estimated total cost . Billed minus earned is overbilling when positive and underbilling when negative. One journal entry a month moves the totals into the ledger, and debits must equal credits. I work on ZeraBooks, and contractors send us exactly this report each month. Here is the computation with the figures from our contractor guid

Most developers using terminal coding agents like Claude Code , OpenCode , Codex , or Cursor end up running an LLM router in the background to handle rate limits, multiple accounts, and model failovers. Popular tools like OmniRoute and LiteLLM work, but running a full Node.js or Python runtime 24/7 just to proxy HTTP requests consumes 150MB to 300MB of RAM and introduces cold-start latency. I wanted something that idles at < 6MB RAM , starts instantly, and never panics. So I built GoRoute . What

This is a submission for the Hacktoberfest Open-Source AI Challenge Week 2: Side Hustle What I Built ListingForge helps a small online seller turn photos of one product into a first draft of a shop listing. You add 1 to 4 photos, choose Etsy or eBay, and optionally add a one-line note. Gemma 3 looks at the photos and drafts a title, a description of about 100 words, tags and a condition note. It also gives you a box called "Things only you can fill in", which lists everything a photo can't tell:

Helpdesk: "Everyone who signs in to RDSH02 gets a pop-up: 'Remote Desktop licensing mode is not configured. Remote Desktop Services will stop working in 6 days.' We bought CALs last year, and LIC01 shows them in the licensing manager. Someone found a registry fix online that resets the 120-day grace period. Can we just run that so the pop-up goes away?" Don't reset anything yet. "Remote Desktop licensing mode is not configured" means the session host doesn't have a licensing mode and license ser

Connecting your backend to Meta's official WhatsApp Cloud API allows you to send automated transactional alerts, customer support messages, and interactive marketing campaigns directly to WhatsApp users globally. In this practical tutorial, we will build a production-ready Webhook server using Node.js, Express, and crypto verification that handles Meta's verification handshake, processes inbound user messages, and dispatches automated replies. Step 1: Project Initialization Initialize your Node

I'm Ali, and I've been building Bid Spotlight ( https://bidspotlight.com ) — a monthly ranked leaderboard for products where the ranking is openly pay-to-rank, and every paid spot ships with an automatically generated promo video. Why pay-to-rank, openly? Small products have almost no affordable way to get in front of buyers. The channels that work are either expensive, opaque, or both: directories sell "featured" slots quietly, social reach is a lottery, and ads need budgets and skills most sol

Email is often treated as harmless test plumbing. In a web application, it is closer to a small data store: messages can contain personal-looking addresses, sign-in links, verification codes, and enough context to explain what a user did. When a test fails, that data may then be copied into CI logs, screenshots, artifacts, or a developer's laptop. A useful pattern is to give test email a privacy budget. The budget is not a single number. It is a set of limits for who owns a fixture, how long it

Ask a language model how to turn your skills into an AI side business, and you can predict the answer before it finishes rendering. It will tell you to start an "AI consulting agency," offer "corporate AI training workshops," or sell "custom GPT prompt packs." Those suggestions sound plausible on a screen, yet they fail almost immediately in the real market. Small business owners and department heads rarely wake up wanting to buy "AI consulting" from a solo operator. They pay to make a recurring

Short answer: For a property-management video call, start with one server-issued credential scoped to one appointment room and one participant identity. If someone cannot join, compare the room and identity the server authorized with the room and identity the client actually attempted. Then separate admission failure from a connection that was admitted but never established. Those are different investigations. Symptom at the boundary First comparison Pick this when Join rejected before signaling

My Fast Movers has 27,854 route pages (every state-to-state moving corridor, e.g. Texas to California). Programmatic SEO at that scale has one mortal enemy: duplicate content. Here's how we keep every page genuinely unique. The template trap The naive approach is one template with swapped city names. Google sees through it instantly, and worse, it's useless to humans. "Moving from {A} to {B} costs ${X}" repeated 27,854 times helps nobody. Our rule: every page must contain at least three data poi

Gas Optimization Audit: Deribit Target Protocol : Deribit (TVL: $3933.5M) Deribit – Gas‑Optimization Audit Report Date: 17 Oct 2026 Prepared by: [Your Company] – Senior DeFi Security Research & Smart‑Contract Auditing Team 1. Executive Summary Deribit is a leading derivatives exchange with a reported TVL of ≈ $3.93 B across Ethereum L1 and multiple L2 roll‑ups. The platform’s smart‑contract suite handles perpetual futures, options, and margin‑trading logic that is executed millions of times per

I'm Duc. Since May 2025 I've been building Excalibase on nights and weekends, next to my day job. It started as a GraphQL engine for Postgres, because I like SQL. It's now an open-source platform as a service: one place for the database, the API on top of it, auth, and the apps that use it. What you get When you create a project, you get: A database. Postgres, or MySQL from this week's release. Backups and point-in-time restore are built in. A GraphQL and REST API generated from your schema. Add

Short answer: for retrieval architecture in a multi-tenant SaaS help center, use staged retrieval with explicit collections, bounded queries, and source context that survives pagination. Pick the backend whose filtering and citation behavior you can measure, then keep ingestion, retrieval, and answer generation as separate SLO-bearing stages. That decision rule matters in a B2B help center because a page of results is not a cosmetic UI detail. Tenant isolation, ranking, freshness, and citation a

Most order systems store one boolean for cross-border shipments, something like is_international , and then let a human figure out the paperwork. 19 CFR part 143 does not behave like a boolean. It keys three different things off three different facts, namely which class of entry is available, who is permitted to sign it, and which document has to exist. A single flag cannot carry that, which is why the same column produces so many surprises at a port. Three facts, three columns create table inbo

Paste a screenshot of a Figma frame into Claude Code and you get something that looks close: hard-coded hex colors, guessed spacing, a brand-new button component when your repo already has three. The model is reading pixels, so it can’t see your variables, your components, or how the layout is supposed to stretch. Figma MCP is Figma’s official server. Paste a link to a frame instead, and Claude Code pulls the structured design: layout, variables, components, and a screenshot for reference. It’s

This is a submission for the Hacktoberfest Open-Source AI Challenge Week 2: Side Hustle What I Built FreelanceFlow is an AI bookkeeper for freelancers that runs entirely on their own computer. Freelancers, creators and tiny agencies handle their own money but have no finance team. Receipts are photos, invoices are PDFs, and everything piles up. Many pay an accountant mainly to organize paperwork. A cloud AI tool could do it, but uploading client invoices and bank data to a server you don't contr

Junior SQL interviews ask "what is an index." Senior interviews ask why the index you added is being ignored , why a query that's fast for one tenant times out for another , and why the deadlock only happens in production at 9am . SQL Server rewards people who can read a plan, reason about statistics and locks, and know when the database — not the C# — is the bottleneck. This is 30 questions across the four areas seniors actually get grilled on: indexing & tuning, execution plans & the optimizer

A scheduled fintech import that stops producing results needs two signals: an explicit completion event from the Node.js worker and a deadline check outside that worker. That is the least complex design that catches silence. Error tracking still matters, but stack traces alone cannot report code that never ran. TL;DR: choose an error-tracking service only after testing four things with your own Express failures: readable source-mapped stacks, stable grouping, field-level search, and controllable

Buenas comunidad, soy Mai y este es mi primer publicacion. Estoy en un proyecto grupal de la carrera de desarrollo de software y nos manejamos con GitHub Desktop. La dinámica del equipo es simple: cada uno labura en su rama y después mandamos todo a develop para testear que no se haya roto nada. El tema es que hoy me quise pasar a develop por primera vez para ver cómo venía el avance general y me salto el tipico cartel de cambios locales pendientes. Cuando me fije el archivo (les dejo la captura

I work as a data infrastructure engineer at a company where ClickHouse comes up at almost every coffee break. The questions I get are usually some version of these: "Why do I still see the old value? I'm using ReplicatedReplacingMergeTree ." "Why are we getting Too many parts errors?" "Why doesn't my SELECT show the values I expect?" At some point I noticed that all of them come from the same gap. The people asking had never seen the whole flow, from the moment a row is inserted to the moment it