Developer Guides & Pillar Resources

Comprehensive, regularly updated guides for engineers and engineering leaders. AI models, coding agents, mobile testing, and the tooling that actually ships software.

All Guides

Each guide is a single canonical page on the Codersera blog, kept current as the underlying tools and models evolve. Click through to read the full guide.

AI ModelsUpdated May 31, 2026

Apple Silicon LLMs: Complete Guide to Running Models on Mac (2026)

The complete Codersera guide to running large language models locally on Mac. MLX has won the Apple Silicon performance race; this is what to buy, install, download, and how to think about it.

Read Full Guide →
Developer ToolingUpdated May 28, 2026

AI Coding Agents in 2026: The Complete Guide

Comprehensive 2026 guide to the major AI coding agents — Cursor, Claude Code, Cline, Aider, OpenCode, Windsurf, Void AI — with real pricing, model support, and workflow tradeoffs.

Read Full Guide →
AI ModelsUpdated May 27, 2026

The Open-Source LLM Landscape in 2026

The full open-weight LLM landscape in 2026 — DeepSeek V4, Llama 4, Qwen 3.5, Gemma 4, Mistral, Phi-4 — with real benchmarks, license analysis, and a decision framework.

Read Full Guide →
AI ModelsUpdated May 27, 2026

Claude Opus 4.7: The Complete Developer Guide (2026)

Where Claude Opus 4.7 is still the best model and where DeepSeek V4 or GPT-5.5 win — with real benchmark numbers, prompt-caching math, and a frank take on cost.

Read Full Guide →
AI ModelsUpdated May 27, 2026

Llama 4: The Complete Developer Guide (2026)

Definitive 2026 guide to Meta's Llama 4: variants, real benchmarks, license restrictions, hosted-provider pricing, self-hosting, and competition vs DeepSeek V4, Qwen 3.5, and Gemma 4.

Read Full Guide →
AI ModelsUpdated May 27, 2026

Qwen 3.5: The Complete Developer Guide (2026)

Why Qwen 3.5 has been quietly winning on cost-per-quality — variants, real benchmarks, hosted pricing, and self-hosting tradeoffs vs DeepSeek V4 and Llama 4.

Read Full Guide →
AI ModelsUpdated May 27, 2026

GPT-5.5: The Complete Developer Guide (2026)

What GPT-5.5 actually ships, what it costs, where it leads on agentic and tool-use reliability, and where Claude Opus 4.7 or DeepSeek V4 are the better pick.

Read Full Guide →
Developer ToolingUpdated May 27, 2026

Cursor IDE in 2026: The Complete Developer's Guide

What Cursor is in 2026 — the 3.0 Agents Window era, parallel agents with /best-of-n on git worktrees, the credit-pool pricing reset, MCP with the 40-tool ceiling, and where Claude Code, Cline, Aider, and Void AI win instead.

Read Full Guide →
EngineeringUpdated May 27, 2026

Gemini 3.5 Complete Guide: Flash, Pro, Pricing & How It Compares (2026)

Google's Gemini 3.5 Flash shipped at I/O 2026 as the new default Gemini. The complete developer's guide — pricing, context, multimodal, how it stacks up against Claude and GPT-5.5.

Read Full Guide →
AI ModelsUpdated May 27, 2026

Self-Training a Small LLM From Scratch: The 2026 Complete Guide

Pre-training a small LLM from scratch in 2026 — the nanochat starter, the architecture template that won, what datasets to use, and when self-training beats fine-tuning.

Read Full Guide →
AI ModelsUpdated May 27, 2026

Fine-Tuning LLMs: The Complete 2026 Guide (LoRA, QLoRA, Unsloth, Axolotl, MLX)

When fine-tuning an open-weight LLM actually wins over RAG or prompts — and how to do it cheaply with Unsloth, Axolotl, or MLX-LoRA. Datasets, hyperparameters, evaluation, costs, and the failure modes that quietly ruin most first runs.

Read Full Guide →
EngineeringUpdated May 23, 2026

AGENTS.md and SKILL.md: The Complete Guide (2026)

AGENTS.md is the Linux Foundation-stewarded open standard 60,000+ repos use to guide AI coding agents. Spec, native support in 20+ tools, real-world examples, monorepo patterns, and how SKILL.md fits alongside it.

Read Full Guide →
AI ModelsUpdated May 23, 2026

DeepSeek V4: The Complete Guide (2026)

The definitive 2026 guide to DeepSeek V4 Pro and V4 Flash: architecture, benchmarks, pricing, hardware, API integration, and migration from Claude or GPT.

Read Full Guide →
EngineeringUpdated May 18, 2026

Kimi K2.6: The Complete Developer Guide (2026)

Kimi K2.6 ties GPT-5.5 on SWE-bench Pro at 5–6x lower cost — with agent swarms, 13-hour autonomous runs, and open weights. Where it wins, where Opus 4.7 still leads.

Read Full Guide →
EngineeringUpdated May 3, 2026

Hire Remote Developers: The Complete Guide (2026)

How to hire vetted remote developers in 2026 — vetting, cost, contracts, onboarding, red flags. With a risk-free trial.

Read Full Guide →
Mobile & TestingUpdated May 1, 2026

Software Testing in 2026: The Complete Engineer's Guide

An opinionated 2026 guide to software testing for engineers who own quality — pyramid vs trophy, frameworks per ecosystem, AI-augmented testing, performance, flakiness, and when to outsource.

Read Full Guide →
Mobile & TestingUpdated May 1, 2026

Mobile App Testing in 2026: The Complete Guide

How to actually ship a mobile app testing strategy in 2026: pyramid mapping, frameworks, device clouds with real pricing, CI/CD integration, and when to outsource vs in-house.

Read Full Guide →
Mobile & TestingUpdated May 1, 2026

iOS Simulators in 2026: The Complete Guide for Developers

Xcode Simulator, online iOS emulators, and device clouds — what each is actually good for, what it costs, and the iOS-emulator-for-Windows scams to skip.

Read Full Guide →
AI ModelsUpdated May 1, 2026

Gemma 4: The Complete Developer Guide (2026)

Gemma 4 shipped Apache 2.0 — the biggest change from prior generations. Variants, real benchmarks, hosted pricing, and how it stacks against DeepSeek V4 Flash, Llama 4, and Qwen 3.5.

Read Full Guide →
AI ModelsUpdated May 1, 2026

Self-Hosting LLMs in 2026: The Complete Guide

When to self-host LLMs vs use the API, what hardware and inference stack to choose, and which open-weight models actually work — with real numbers and crossover thresholds.

Read Full Guide →
Mobile & TestingUpdated May 1, 2026

Android Emulators in 2026: The Complete Guide for Developers

Definitive 2026 guide to Android emulators for developers and QA: official AVD, BlueStacks, LDPlayer, Nox, MEmu, Genymotion, Waydroid, and cloud testing — with hardware specs and pricing.

Read Full Guide →

Need Expert Development Help?

Our network of vetted remote engineers ships the systems these guides describe. Hire on demand, with a 7-day risk-free trial.