2muchcoffee Blog: Web, Mobile & AI Engineering

Popular

AI-Native vs AI-Powered Developers: What Hiring Teams Get Wrong

Learn how AI-native, AI-powered, traditional, and vibe-coding developers differ, and what to ask before hiring for AI coding work.

Ultimate Guide to Speech-to-Text Technology: Evolution, Architecture, and Applications

Introduction Imagine a world where every spoken word is instantly captured and transformed into a neatly organized script. This isn't George Orwell's 1984 vision of surveillance and control; instead,

Startup Solutions

Where to Secure Startup Funding in 2024: A Guide for Tech Entrepreneurs in the US

Introduction In 2024, the landscape for startup funding is more dynamic than ever. Tech entrepreneurs and IT professionals are faced with a myriad of options, each offering unique benefits and suited to different

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Bun vs pnpm, Yarn, and npm: Package Managers Compared

Bun, pnpm, Yarn, and npm are not just four install commands. They are four different answers to speed, strictness, workspaces, CI, lockfiles, and how much tooling your team wants one package manager to own.

Bun

Bun vs Deno vs Node.js: Which Runtime Should You Actually Use?

Bun, Deno, and Node.js are not just three speed scores. They are three different bets on compatibility, security, and how much JavaScript tooling your runtime should replace.

HealthTech

Wearables and Health Data: HealthKit, Google Fit, and the Accuracy Trap

The step count is a polite fiction. It disagrees across devices, double-counts, arrives late, and is sometimes a washing machine. A builder's guide to the messy substrate under every fitness app: HealthKit and Health Connect, the accuracy trap, and the reconciliation layer you design on purpose.

Design

Best AI Tools for UX Research in 2026: Maze, Dovetail, UserTesting, Outset, and Notion AI

AI-moderated research sounds like a shortcut until the synthesis quotes a user who never said it. A designer's guide to the five tools, scored on the one thing that matters: does it cite its sources.

AI agents

The YC Batch That Barely Hires: What Spring 2026 Says About the Cost of Software

Four days before Demo Day, 34 of 196 companies in YC's Spring 2026 batch were hiring anyone at all. A look at the batch that builds with agents and almost no people, and what it means if you sell engineering work.

Python

RLS for Agents: Row-Level Security in LangGraph and Multi-Tenant LLM Workflows

An agent we shipped last quarter returned a row from the wrong tenant. The agent did what the prompt asked. The database did what the agent asked. The third jurisdiction of every agentic workflow is the database, and Pydantic and TypedDict cannot reach it.

Fintech

How a Loan Marketplace Actually Works: Soft Search, Matching, and Who Gets Paid

A loan marketplace never lends anyone money. It routes a borrower to whoever will, gets paid for the introduction, and the entire product is the routing. Here is how the soft search, the matching engine, and the payout actually work, from someone who has built one.

Fintech

Earned Wage Access: How It Works, and the CFPB Line That Decides If It's a Loan

Every earned wage access app says the same three words: not a loan. Since December 2025 the CFPB has drawn an exact four-part line around which products get to say that honestly, and almost none of the popular ones clear it. Here is the line, and what it means to build on either side of it.

Fintech

Alternative Credit Scoring, Explained: How Gamified and Behavioural Scores Work

A gamified credit score is not your bureau score. It is the lender's own number that rises when you repay well and falls when you don't, and it gates your next loan. Where it sits inside alternative credit scoring, and what it takes to build one that is hard to game.

Fintech

Open Banking Underwriting in 2026: Building Loan Risk Models from Real Cashflow

The modern loan risk model is not a credit-score lookup. It reads a borrower's actual cashflow through open banking, decides affordability in minutes, and has to explain itself afterward. Here is how that decision engine is built, from someone who has shipped them.

Fintech

How to Build a Digital Lending Platform in 2026: Four Products, One Phrase

Build me a loan app means four different products. Here is how to pick the right one, what to actually build (soft search, open-banking matching, gamified scoring), and the FCA and CFPB rules that shape all of it.

AI development

Real-Time Market Data and Trading Infrastructure: Sub-Second Sync Without Lying to the User

A quote half a second stale is a quote that is wrong. A price that disagrees between the web and the app is a support ticket and a trust problem. Streaming market data at scale is a data-integrity bar, not just a websocket.

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The 2muchcoffee engineering blog: web, mobile, and AI development, RAG, and startup strategy from a US software team building since 2015.

Our Blog is a place to find tips, insights, news, and best practices on software development, design, and business growth.

AI-Native vs AI-Powered Developers: What Hiring Teams Get Wrong

Ultimate Guide to Speech-to-Text Technology: Evolution, Architecture, and Applications

Where to Secure Startup Funding in 2024: A Guide for Tech Entrepreneurs in the US

Bun vs pnpm, Yarn, and npm: Package Managers Compared

Bun vs Deno vs Node.js: Which Runtime Should You Actually Use?

Wearables and Health Data: HealthKit, Google Fit, and the Accuracy Trap

Best AI Tools for UX Research in 2026: Maze, Dovetail, UserTesting, Outset, and Notion AI

The YC Batch That Barely Hires: What Spring 2026 Says About the Cost of Software

RLS for Agents: Row-Level Security in LangGraph and Multi-Tenant LLM Workflows

How a Loan Marketplace Actually Works: Soft Search, Matching, and Who Gets Paid

Earned Wage Access: How It Works, and the CFPB Line That Decides If It's a Loan

Alternative Credit Scoring, Explained: How Gamified and Behavioural Scores Work

Open Banking Underwriting in 2026: Building Loan Risk Models from Real Cashflow

How to Build a Digital Lending Platform in 2026: Four Products, One Phrase

Real-Time Market Data and Trading Infrastructure: Sub-Second Sync Without Lying to the User