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We share knowledge about AI, smart home and QA. Claude Code, MCP, local LLMs, Home Assistant, prompt engineering and test automation - no paywalls, no marketing fluff.

01 Aug 31, 2026 14 min read

Morning Routines in Home Assistant: Back to School and Work Without the Chaos

Wake-up light, an event-driven morning sequence, per-person routines and a single leaving automation - taking the chaos out of school-year mornings.

smart-home home-assistant

Grzegorz Holak

02 Aug 28, 2026 16 min read

A Home Ready for Autumn: Heating Schedules in Home Assistant Before It Gets Cold

Heating schedules in Home Assistant: an inventory of what you control, zones with TRVs, presence-based setbacks, sensor calibration and a September dry run before the season.

smart-home home-assistant

Grzegorz Holak

03 Aug 27, 2026 15 min read

MCP Security: What Can Go Wrong With Third-Party Servers and How to Audit Them

An MCP server is third-party code running with your permissions and content flowing straight into model context. Risk classes, an audit checklist, and a team process.

ai mcp

Grzegorz Holak

04 Aug 26, 2026 14 min read

An Agent in Exploratory Testing: a Partner, Not a Replacement

Charters before the session, a second observer via Playwright MCP during it, solo exploration after hours - what an agent really adds to exploratory testing and where it fails.

ai qa

Grzegorz Holak

05 Aug 24, 2026 18 min read

Smart Home Without the Cloud: Free Your Tuya and Xiaomi Devices From Vendor Servers

How to cut Tuya and Xiaomi devices off vendor clouds: local control in Home Assistant, your own Zigbee coordinator, miio tokens and a phased migration plan.

smart-home home-assistant

Grzegorz Holak

06 Aug 21, 2026 19 min read

Backup Power for Your Smart Home: UPS, Power and Internet Outages - What Survives

What fails in a smart home when the power goes out, sizing a UPS for the real load, NUT integration with Home Assistant, LTE failover and a resilience test - with yaml.

smart-home home-assistant

Grzegorz Holak

07 Aug 20, 2026 17 min read

Prompt Injection for Testers: the OWASP LLM Top 10 in Practice

What prompt injection really is, how a QA tester should read the OWASP LLM Top 10, and how to test agents defensively: cases, assertions, reporting.

ai qa

Grzegorz Holak

08 Aug 19, 2026 16 min read

Testing Applications with an LLM Inside: How QA Handles Non-Determinism

How to test apps with an LLM inside: mocks for the deterministic code, structure contracts, property assertions, pass-rate evaluations and a calibrated LLM judge.

ai qa

Grzegorz Holak

09 Aug 17, 2026 17 min read

Heatwave Automations: Blinds, Air Conditioning and Sensors Before the House Heats Up

Heat mode in Home Assistant: forecast as the trigger, blinds driven by sun position per facade, night ventilation and air conditioning without automation wars - with yaml.

smart-home home-assistant

Grzegorz Holak

10 Aug 14, 2026 16 min read

Vacation Mode in Home Assistant: Presence Simulation and a House That Watches Itself

One input_boolean master switch, randomized presence simulation, layered alerts, a connectivity watchdog and trusted-person access - with yaml examples and a checklist.

smart-home home-assistant

Grzegorz Holak

11 Aug 13, 2026 9 min read

Synthetic Test Data with LLMs: How to Generate Realistic Data Without Leaking Production

A data contract, a deterministic validator, targeted edge cases, and the three traps of synthesis - how to generate test data with an LLM without copying production and without GDPR risk.

ai qa

Grzegorz Holak

12 Aug 12, 2026 9 min read

Self-Healing Tests: How Much Is Engineering, and How Much Is Marketing

How automatic locator repair really works, where it quietly masks regressions, how a vendor tool differs from your own agent with repository access, and eight questions to ask before buying.

ai qa

Grzegorz Holak

13 Aug 10, 2026 9 min read

Notifications That Don't Fatigue: a Notification Strategy for Home Assistant

A layered notification model (alarm, info, journal), actionable notifications with buttons, escalation for critical events, plus quiet hours and grouping - with yaml examples.

smart-home home-assistant

Grzegorz Holak

14 Aug 7, 2026 9 min read

Presence Sensors 2026: PIR, mmWave or Bluetooth Tracking - What to Pick for Which Room

A comparison of three human-detection technologies: price, sensitivity, false alarms, privacy and power consumption, plus concrete room-by-room recommendations and mmWave tuning.

smart-home home-assistant

Grzegorz Holak

15 Aug 6, 2026 9 min read

Hallucinations Under the Hood: Where They Come From and Five Techniques That Actually Reduce Them

Why a model makes things up by design rather than by malfunction, and five everyday defense techniques with before/after examples: forcing sources, a sanctioned "I don't know", task splitting, second-model verification, and grounding in documents.

ai hallucinations

Grzegorz Holak

16 Aug 5, 2026 9 min read

LLM as a Judge: Can a Model Evaluate Test Results, and When Not to Trust It

The LLM-as-judge pattern in testing: a rubric instead of a 1-10 scale, calibration on golden examples, three working modes, and four judge biases you need to know before rollout.

ai qa

Grzegorz Holak

17 Aug 3, 2026 9 min read

Energy Monitoring in Home Assistant: What Really Eats Your Electricity and Whether a Smart Home Pays for Itself

Energy measurement from a single plug to the main meter, the energy dashboard with electricity prices, alert thresholds, night-tariff automations and an honest return-on-investment calculation for a realistic home.

smart-home home-assistant

Grzegorz Holak

18 Jul 31, 2026 10 min read

IoT on a Separate Network: VLANs and a Firewall for Your Smart Home Without a Networking PhD

Network segmentation is the biggest free security lever for a smart home: a three-network model, firewall rules in plain language, the mDNS trap and a rollout plan for UniFi, Mikrotik and OpenWrt.

smart-home security

Grzegorz Holak

19 Jul 30, 2026 9 min read

Fine-tuning, RAG, or a Longer Prompt? A Decision Tree Without the Marketing

A five-step decision tree for teams without an ML department: when a prompt with examples is enough, when you need RAG, and when fine-tuning genuinely pays off - with a table of cost, time, and risk.

ai rag

Grzegorz Holak

20 Jul 29, 2026 9 min read

A Tester in Code Review: What You Can Contribute Even If You Don't Write Code Every Day

What a tester should look for in submitted changes, a checklist for your first reviews, and a plan for joining the process without stepping on developers' toes or slowing the team down.

qa code-review

Grzegorz Holak

21 Jul 27, 2026 9 min read

AI in Smart Home, Part 8: A Home That Keeps Watch - Cameras, Privacy, and Local Event Analysis

The eighth part of the AI in smart home mini-series. We assemble local monitoring: Frigate for detection, a vision model for event descriptions, Home Assistant for notifications - and we draw the privacy boundaries a camera should never cross.

ai smart home

Julia Sielska & Grzegorz Holak

22 Jul 24, 2026 9 min read

AI for Flaky Test Analysis: From CI Chaos to a List of Root Causes

A workflow where an agent collects CI run history, groups failures by error signatures, classifies the root causes of flaky tests, and sets the order of fixes.

ai qa

Grzegorz Holak

23 Jul 23, 2026 9 min read

Evals for Regular People: How Do You Know Your Prompt Works at All?

A minimal prompt evaluation process without a framework: a golden set of ten cases, binary criteria, an A/B comparison table, and three traps that ruin the measurement.

ai prompt-engineering

Grzegorz Holak

24 Jul 22, 2026 9 min read

Test Debt: How to Measure It, Show It to the Business, and Pay It Down Without Stopping the Team

An operational definition of test debt, six measurable signals, pricing in hours and risk, and a repayment strategy that does not require halting delivery for a fix-it sprint.

qa test-debt

Grzegorz Holak

25 Jul 21, 2026 15 min read

Argus and Hephaestus: Two AI Agent Teams, One Builds, One Inspects

How I built two teams of specialized subagents in Claude Code: Hephaestus delivers software, Argus hunts bugs. Roles, coordinators, how they cooperate, and when orchestration is overkill.

ai agents

Grzegorz Holak

26 Jul 20, 2026 9 min read

AI in Smart Home, Part 7: A Home That Plans - Energy Optimization with Forecasts

The seventh part of the AI in smart home mini-series. We build an energy planner: electricity prices, solar production forecasts, and the calendar as inputs, an LLM as a constrained planner, a decision log, and an honest profitability calculation.

ai smart home

Julia Sielska & Grzegorz Holak

27 Jul 17, 2026 10 min read

Back Up Home Assistant Before It's Too Late - a Step-by-Step Recovery Strategy

A complete Home Assistant backup strategy: automatic backups, off-device storage, encryption key handling and the restore test that tells you the truth about whether you have a backup at all.

smart-home home-assistant

Grzegorz Holak

28 Jul 16, 2026 9 min read

Context Engineering: Why Your Agent Gets Dumber in a Long Session

Three mechanisms of context degradation (lost in the middle, instruction dilution, growing cost) and four habits that keep the token budget under control: compacting, clean starts, subagents, and pointers instead of data.

ai context-engineering

Grzegorz Holak

29 Jul 15, 2026 9 min read

The Test Pyramid in 2026: What's Left of It After a Decade of Microservices and Agent-Written E2E

Which floors of the classic test pyramid still make sense, where the drawing plainly lies, and what a healthy test distribution looks like in a typical web project - no dogma, just heuristics.

qa testing

Grzegorz Holak

30 Jul 14, 2026 14 min read

3 anti-patterns that destroy QA credibility

The series finale. Overloaded dashboards, numbers without context and jargon at the table with business. Three sins of quality reporting, all practiced first-hand, and a way out of each. Article 9 of 9.

qa metrics

Filip Barszcz

31 Jul 13, 2026 9 min read

AI in Smart Home, Part 6: A Home That Notices - Anomaly Detection Instead of Fixed Thresholds

The sixth part of the AI in smart home mini-series. We teach the home to recognize deviations from its own baseline: from the statistics built into Home Assistant, through domain rules, to a language model acting as a periodic data analyst.

ai smart home

Julia Sielska & Grzegorz Holak

32 Jul 10, 2026 9 min read

An Agent Fixes E2E Tests: A Playwright + Claude Code Workflow Step by Step

How to build a workflow where an agent diagnoses failed e2e tests and opens a PR with a fix - plus the four agent mistake patterns you need to know before you trust it.

ai qa

Grzegorz Holak

33 Jul 9, 2026 9 min read

Hooks in Claude Code - the Deterministic Layer Your Agent Cannot Skip

What hooks are in Claude Code, how blocking actions with exit code 2 works, and four practical examples: blocking commits without tests, lint after every edit, a secrets guard, and session-start context.

ai claude-code

Grzegorz Holak

34 Jul 8, 2026 9 min read

Risk-Based Testing in Practice: How to Decide What NOT to Test

A simple impact-times-probability matrix, a real release walkthrough where half the scope shipped without tests, and how to communicate those decisions to the business.

qa risk

Grzegorz Holak

35 Jul 7, 2026 13 min read

Storytelling with metrics - how to turn a table into an argument

The same data can put a room to sleep or trigger a decision. The inverted-pyramid skeleton, techniques for translating numbers into business language, a narrative generator and four ready-made templates. Article 8 of 9.

qa metrics

Filip Barszcz

36 Jul 6, 2026 10 min read

AI in Smart Home, Part 5: A Home That Talks - A Voice Assistant with a Local LLM

The fifth part of the AI in smart home mini-series. We build a voice assistant on Home Assistant Assist with a local language model: the chain from wake word to speech synthesis, hardware choices, and an honest comparison with commercial assistants.

ai smart home

Julia Sielska & Grzegorz Holak

37 Jul 3, 2026 16 min read

Is it worth growing in QA if you 'already know how to test'?

Growth in QA isn't just automation. It's better understanding of the product, risk, technology, business and how a team works together.

qa growth

Grzegorz Holak

38 Jul 2, 2026 17 min read

Why QA can't stand still while the product and team move forward

Quality assurance must evolve with the product, the technology and the team. Here's why old QA approaches stop working as systems grow.

qa process

Grzegorz Holak

39 Jul 1, 2026 15 min read

Continuous growth in QA: curse, necessity, or real gain?

Continuous growth in QA can be a competitive edge - or a source of pressure and exhaustion. Here's how to grow deliberately, without chaos or burnout.

qa growth

Grzegorz Holak

40 Jun 30, 2026 16 min read

Release Confidence Score step by step

How to combine five QA metrics into a single decision indicator. Three calculation models - traffic light, weighted, with a disqualifier - an interactive calculator, and how the Confidence Score changes QA's position in the company. Article 7 of 9.

qa metrics

Filip Barszcz

41 Jun 29, 2026 13 min read

AI in Smart Home, Part 4: Is a Mini Smart Home Worth It on a Construction Site?

A smart home does not have to start after moving in. On a construction site, it can run in a mini version: tracking temperature and humidity, sending reports, detecting warning thresholds, combining sensor data with camera events, and helping document risks.

ai smart home

Julia Sielska & Grzegorz Holak

42 Jun 26, 2026 17 min read

Building Your Own AI Agents: From Personal Assistant to Specialist Team

How to build your own AI agents: from a single personal assistant to a team of specialized agents. A practical take on design, roles, and coordination, without magical thinking.

ai ai agents

Julia Sielska & Grzegorz Holak

43 Jun 25, 2026 16 min read

Why QA experience is more than years on a CV

QA experience isn't just tool knowledge. It's the ability to predict risk, ask the right questions, and recognise problems before they become bugs.

qa experience

Grzegorz Holak

44 Jun 24, 2026 11 min read

Self-learning AI: ai-slop.win - a free GenAI course built entirely by AI

Behind the self-ironic domain ai-slop.win sits a complete, free, anonymous GenAI and LLM course: six learning paths, over thirty modules, tests with safety gates, and a certificate. The whole thing was built by AI - under supervision, with requirements, code review, and tests.

ai self-learning

Grzegorz Holak

45 Jun 23, 2026 14 min read

Number of Releases - the context metric

Why the number of releases is the common denominator for every QA metric. How to normalize, the link to Deployment Frequency (DORA), and why 3 bugs across 2 releases is a crisis while 3 across 15 is a win. Article 6 of 9.

qa metrics

Filip Barszcz

46 Jun 22, 2026 9 min read

The Holak (and Gomulski) Scale 3.0 - fewer levels, more meaning

An update to the AI adoption maturity model, co-created with Konrad Gomulski. Version 3.0 simplifies the scale to five levels and stops treating a level as a label for a person - it moves the diagnosis onto a specific context: a task, a team, a process or an organisation.

ai adoption

Grzegorz Holak & Konrad Gomulski

47 Jun 22, 2026 13 min read

AI in Smart Home, Part 3: A Home That Shows What Matters - Dashboards Designed with AI

The third part of the AI in smart home mini-series. We use AI to design Home Assistant dashboards: from information architecture and view structure to cards, status summaries, technical dashboards, and readable labels.

ai smart home

Julia Sielska & Grzegorz Holak

48 Jun 19, 2026 11 min read

Prompt engineering in practice - images, video, Gemini, Veo, and ChatGPT Images without mythology

Prompt engineering for images and video without the mythology: how to think about prompts for Gemini, Imagen, Veo, and ChatGPT Images. The prompt as a specification of intent, not a magic spell.

ai prompt engineering

Julia Sielska & Grzegorz Holak

49 Jun 18, 2026 18 min read

When to automate tests, and when automation is a waste of time

Test automation isn't always the right answer. Here's when it's worth automating, what to leave manual, and how to make conscious QA decisions.

qa automation

Grzegorz Holak

50 Jun 17, 2026 11 min read

Ultracode and Dynamic Workflows in Claude Code - what they really change for QA, architects, and development teams

What Ultracode and Dynamic Workflows in Claude Code actually are: a workflow with phases and subagents instead of a linear chat. What it changes for QA, test architects, and teams - and the cost risks involved.

claude-code ai

Grzegorz Holak

51 Jun 16, 2026 14 min read

Escaped Bugs per Release - find the risky release

How to detect an escaped-bug spike in a single release, run a 5-question investigation and put prevention in place. Escaped per Release vs the overall Escaped Rate. Article 5 of 9.

qa metrics

Filip Barszcz

52 Jun 15, 2026 13 min read

AI in Smart Home, Part 2: A Home That Thinks in Scenarios - Automations with AI

The second part of the AI in smart home mini-series. We explore how to use language models to design, generate, review, and document Home Assistant automations - without giving them full control over the house.

ai smart home

Julia Sielska & Grzegorz Holak

53 Jun 12, 2026 9 min read

AI in Everyday Life: LLMs as Board Game Assistants

An LLM can be a very practical helper during board games: explaining rules, resolving ambiguities, searching rulebooks, creating turn summaries, and keeping house rules consistent. The condition is simple: treat it as an assistant, not an infallible judge.

ai llm

Julia Sielska & Grzegorz Holak

54 Jun 11, 2026 17 min read

Why skipping QA on a project almost always costs more than it seems

QA isn't an add-on. Skipping quality assurance leads to delays, bugs, chaos and lost user trust. Here's why it almost never pays off.

qa quality

Grzegorz Holak

55 Jun 10, 2026 8 min read

The /goal command in Claude Code - a session contract that won't let the agent give up

How /goal in Claude Code enforces completion through a session-scoped Stop hook. Pros, cons, when to use it, how to phrase the condition, and why it matters for QA.

claude-code ai

Grzegorz Holak

56 Jun 9, 2026 14 min read

Issues per Release - a code-maturity gauge

How to roll out Issues per Release from scratch, why it's a metric of the development process and not just QA, and how it reshapes the conversation with the Engineering Manager. Article 4 of 9.

qa metrics

Filip Barszcz

57 Jun 8, 2026 13 min read

AI in Smart Home, Part 1: A Home That Can See - LLM Vision in Practice

The first part of a mini-series about connecting AI with smart home systems. We move from simple motion detection to visual interpretation: who is at the gate, what happened on the driveway, and when a notification is actually worth sending.

ai smart home

Julia Sielska & Grzegorz Holak

58 Jun 5, 2026 6 min read

Where the Holak Scale Fails - Self-Criticism

Every model is a tool, not a truth. Six places where the Holak Scale actually fails when working with teams, plus reader feedback to address in version 3.

ai adoption

Grzegorz Holak & Konrad Gomulski

59 Jun 3, 2026 8 min read

Multi-Agent Orchestration - When One Agent Is Enough

Level 10 on the Holak Scale is attractive for a CV, expensive to maintain. A skeptical take on agent teams: when you actually need many, when one well-configured agent wins, and how to spot orchestrating mediocrity.

ai agents

Grzegorz Holak

60 Jun 2, 2026 14 min read

Escaped Bugs and Problems - the full spectrum of what reaches production

Bugs in the code are only part of the story. The full taxonomy of escaped problems - code, infrastructure, configuration, integrations, regressions - the cost of each type and how to measure it. Article 3 of 9.

qa metrics

Filip Barszcz

61 Jun 1, 2026 13 min read

MCP, CLI or hook - which tool when, and when MCP is overengineering

MCP is a tool, not a status. Each connector is maintenance, risk and attack surface. Criteria for when MCP pays off, when CLI / slash command / hook is better, a decision tree, and the CLI → MCP migration path.

ai mcp

Grzegorz Holak

62 May 29, 2026 8 min read

AGENTS.md vs CLAUDE.md vs .cursorrules - Which Context File for What

Three context-file formats for AI agents aren't chaos - each has a niche. What each agent reads, what to put in each, how to keep them in sync, and what not to copy 1:1.

ai agents-md

Grzegorz Holak

63 May 28, 2026 7 min read

A Prompt Library Is an Anti-Pattern. Yes, the 200-Line One

If you copy prompts from a document, you have a phase-4 problem, not a phase-3 one. Why prompt fetishism is a symptom of stalled evolution, and how to break a 200-line prompt down into custom instructions and project context.

ai prompt-engineering

Grzegorz Holak

64 May 27, 2026 9 min read

Individual 9, Company 2 - What to Do About AI Maturity Gaps

Most companies measure the maximum instead of the median. How to detect a gap between individual and organisational maturity, how to compute the median, and what to actually do if you're a level-9 engineer in a level-2 company.

ai adoption

Grzegorz Holak

65 May 26, 2026 15 min read

Defect Detection Ratio - how to measure effectiveness before anything reaches production

A deep guide to Defect Detection Ratio - basic and weighted formula, interpretation thresholds, historical data, seasonality, three traps and ready-to-use lines for the boardroom.

qa metrics

Filip Barszcz

66 May 25, 2026 8 min read

AI Adoption Anti-Patterns - 7 Ways to Get Stuck

Most teams don't get stuck because of missing tools - they get stuck on specific patterns of thinking. The seven most common anti-patterns from the Holak Scale, a recognition test, who gets caught, and how to get out.

ai adoption

Konrad Gomulski & Grzegorz Holak

67 May 22, 2026 9 min read

The Trust Boundary - How to Actually Cross from 8 to 9 on the Holak Scale

The hardest jump on the Holak Scale isn't technical. Verifiability and reversibility as a framework, a readiness checklist, and two case studies - one team that made it, one that dropped back to 2.

ai agents

Grzegorz Holak

68 May 21, 2026 10 min read

How to Diagnose a Team's AI Maturity in 30 Minutes

A concrete protocol for scoring a team on the Holak Scale - 8 calibration questions, 5 minutes of live observation and a one-page report. No surveys, no workshops, no slides.

ai adoption

Grzegorz Holak

69 May 20, 2026 12 min read

Claude and Codex: CLI vs Desktop vs Web - Where You Actually Ship Work

Three access channels to the same models differ in what they can touch. A practical comparison of Claude Code and Codex CLI against desktop apps and web interfaces.

ai claude-code

Grzegorz Holak

70 May 19, 2026 12 min read

QA metrics the business actually wants to hear

A complete guide to transforming QA reporting - from counting bugs to speaking the language of outcomes and business decisions. Five metrics, three pillars, one model.

qa metrics

Filip Barszcz

71 May 18, 2026 14 min read

Holak Scale v2.1e - enterprise. An AI adoption maturity model for organizations

12 maturity levels of AI in the workplace - from resistance, through agent workflows, to a purpose-built agentic OS for concrete business outcomes. Version v2.1e splits the enterprise path from the private one.

ai adoption

Grzegorz Holak & Konrad Gomulski

72 May 17, 2026 12 min read

Holak Scale v2.1p - private. Maturity of everyday AI use

12 maturity levels of everyday AI use - home, learning, finance, smart home, life organization. The private version of the Holak Scale, parallel to the enterprise track.

ai adoption

Grzegorz Holak & Konrad Gomulski

73 May 15, 2026 9 min read

Writing your own Claude Code subagent: frontmatter, prompt, deployment

Part two of the subagent series. We build a blog-post-writer agent from scratch - what to put in the frontmatter, how to write a description that actually triggers, and how to dodge two classic traps.

ai claude-code

Grzegorz Holak

74 May 14, 2026 7 min read

Advisor in Claude Code: a second opinion from a stronger model before you commit to a path

The advisor() tool forwards the full transcript to a stronger model and returns an opinion. When to call it before work, when NOT for every step, how not to turn it into endless consultation.

ai claude-code

Grzegorz Holak

75 May 13, 2026 7 min read

The prompt-master skill in Claude Code: a prompt generator for other AI tools

Instead of writing prompts to Midjourney, Sora, Suno or Cursor by hand, you have a Claude Code skill that does it. How it works, where it won't replace knowing the target tool.

ai claude-code

Grzegorz Holak

76 May 12, 2026 7 min read

Subagents in Claude Code: why orchestrate instead of writing in one window

One Claude vs many specialists invoked through Agent. Why subagents, how Claude picks which one to use, when NOT to use them, and why this isn't 'one window with more context'.

ai claude-code

Grzegorz Holak

77 May 11, 2026 10 min read

Zigbee in Home Assistant 2026: ZHA, Z2M Add-on, or Z2M on a Separate Server?

Three real-world Zigbee deployments in HA: built-in ZHA, Zigbee2MQTT as an add-on, and Z2M+MQTT on a separate host. Failure isolation, MQTT attack surface, multi-coordinator, PoE coordinators.

smart-home home-assistant

Grzegorz Holak

78 May 8, 2026 10 min read

Open WebUI - a ChatGPT-like frontend for your local LLM

Local Ollama only gives you a CLI. LM Studio is single-user. Open WebUI is the missing piece: a ChatGPT-like UI with RAG, web search and tools - running in one Docker command.

ai llm

Grzegorz Holak

79 May 7, 2026 11 min read

Local LLM models in 2026 - what actually runs on a Mac mini M4 16 GB

A review of the current models worth pulling onto 16 GB unified memory: gpt-oss-20b, Gemma 4 e4b, Qwen3-Coder, Phi-4. What works, what doesn't, and why.

ai llm

Grzegorz Holak

80 May 6, 2026 10 min read

Mac mini M4 16 GB as a local LLM workstation - LM Studio vs Ollama

Does the cheapest M4 Mac make sense as a machine for local language models? Hardware reality check, LM Studio vs Ollama comparison, and where the sanity line is.

ai llm

Grzegorz Holak

81 May 5, 2026 11 min read

Context7 - the MCP that gives your model up-to-date docs instead of six-month-old knowledge

How one small MCP solves the biggest pain of working with LLMs on code: stale library knowledge. Setup, real-world cases, limitations.

ai mcp

Grzegorz Holak

82 May 4, 2026 10 min read

Caveman - the plugin that cuts output tokens by 75% (and where it breaks)

How a Claude Code plugin that makes the model talk like a caveman changed my token bill - and which tasks it actually fits, which ones it quietly ruins.

ai claude-code

Grzegorz Holak

83 Apr 30, 2026 11 min read

A skill for filing bugs in Jira through Atlassian MCP

How to build a skill that turns your „hey, something's broken on checkout” into a complete Jira ticket - with evidence, dedupe, and without polluting the project. No autopilot agent, a deliberate human confirm in the middle.

ai qa

Grzegorz Holak

84 Apr 29, 2026 9 min read

From article to video: HyperFrames for quality-blog.eu

When a post deserves a thirty-second video explainer, how to build the script, and how to reuse the same material across five channels at once.

ai content

Grzegorz Holak

85 Apr 28, 2026 9 min read

How testers should evaluate agent output

Five dimensions for evaluating agent output, a checklist you can walk in fifteen minutes, and situations where you just send the result back without a lengthy debate.

ai qa

Grzegorz Holak

86 Apr 27, 2026 15 min read

HACS in Home Assistant OS - why, when it's worth it, and how to install it step by step

Why HACS belongs in Home Assistant OS, what to watch out for, how to install it step by step, and what to enable first - an honest walkthrough.

smart-home home-assistant

Grzegorz Holak

87 Apr 24, 2026 9 min read

10 AI workflows that actually help a Test Architect

Ten concrete workflows - from test strategy review to the decision not to automate - each deployable in a week and usable every day.

ai qa

Grzegorz Holak

88 Apr 23, 2026 11 min read

First MCP for QA: search and fetch over evidence

How to start with MCP in QA from the simplest possible pair of tools - search and fetch over evidence. No autonomy, no loops, just a structure you can maintain.

ai qa

Grzegorz Holak

89 Apr 22, 2026 9 min read

How to write AGENTS.md for a test automation repo

What to put in AGENTS.md for a test automation repo, common pitfalls, templates for Playwright, Cypress, and API tests, and how to tell if the file actually helps.

ai qa

Grzegorz Holak

90 Apr 21, 2026 10 min read