TravnikovDev

I swapped Jest for Vitest and my tests felt like I took ankle weights off. Watch mode went from yawn to snap. ⚡

Before I drink the Kool-Aid, I had my AI research agent pull the docs and timelines. The numbers don’t lie, but the story is not just speed.

How they think:

• Jest builds its own little world in Node with a custom module system and transformers. Powerful, but you pay a tax at startup and in config. ESM support is still marked experimental in their docs in 2026.
• Vitest rides Vite’s pipeline. ESM-first, TypeScript just works, transforms run through esbuild or swc, and the module graph makes re-runs fly. You can choose jsdom or happy-dom, even an edge runtime, and run tests in a real browser when you must.

Feature parity is boringly good: expect, snapshots, spies, fake timers. The one gotcha that bites migrations - jest.mock is hoisted, vi.mock is not. Put vi.mock at the top or in setup files. Coverage is also different: Vitest uses provider plugins and counts all matched files in thresholds by

TravnikovDev

China now works where sunlight never will - about 11 km down. Not once. Routinely. And they brought robots.

My AI research agent pulled the raw mission logs and institute papers, and the pattern is clear: in the last decade, China leaped from 7 km dives to full-ocean-depth ops, then started wiring the gaps with smarter autonomy and long-haul gliders. Headlines brag about records. The quieter story is cadence - more dives, longer on-bottom time, faster turnarounds.

The heavy hitters:

• Fendouzhe is a crewed sub that hit about 10.9 km in the Mariana. It’s not just a trophy. It runs real science with deep acoustic comms so you don’t vanish in the dark.
• Haidou-1 is the hadal robot you care about. Hybrid mode, manipulator arms, repeated dives past 10 km, hours crawling the trench floor. That’s intervention, not sightseeing.
• Sea Wing and Haiyan gliders are the scooter swarm. Over 6 km depth on record, months at sea, fleets profiling temperature, oxygen, and more across the Indian Ocean and the Western Pacific

TravnikovDev

Ever fired off a hundred applications and got back silence and two auto-rejections? That’s not just demoralizing - it’s the pike effect in a suit. Slam invisible glass long enough and you stop swimming, even when the glass moves. 🐟

Quick refresher: the pike story is basically a parable. Fish hits a glass wall, gives up, starves. There’s no solid study behind that tale, but the psychology is real. After enough failed tries, the brain learns that effort doesn’t matter and shifts into low-power mode.

My AI research agent pulled the raw data on the US market - I use AI as a shovel, not a guru. Almost every big company runs resume filter software that screens for exact matches. Cold online apps convert to interviews at roughly single digits in many reports. More than half of candidates say they’ve been ghosted. The percentages wobble by source, but the direction is the same - lots of taps on glass, very few bites.

Here’s why spray-and-pray feels so bad. Your brain has a controllability detector. Weeks of silenc

TravnikovDev

Most AI game tutorials end the same way - a stiff HTML canvas demo that feels like homework, not play. Ask the model to “build a game” and it grabs Unity or Godot by name, then quietly retreats to JavaScript and a rectangle.

My AI research agent pulled the raw patterns on what actually ships in 2026, and the truth is boring and beautiful: the winners don’t let the bot pick the engine. They pick one stack that lets them feel the game every 30 seconds, then use AI like a loud autocomplete.

Here’s the stack that keeps you in flow, not in docs: Godot 4 with GDScript. Why? Scene tree plus signals, instant reload, real 2D and 3D, exports that don’t break your soul. GDScript reads like Python, compiles fast, and maps one to one with the editor. You live in the Godot editor, not in terminal hell. For assets, Aseprite for sprites and Godot’s TileMap for levels. That’s it. Keep it small, keep it real.

How AI fits: treat it like a junior dev who types fast and forgets names. Feed it your node tree and exact API signa

TravnikovDev

Stop trusting AI platforms to do the right thing. They look helpful, then quietly light your budget on fire. 🔥

My AI research agent pulled the raw pricing pages and docs. I run most of my work through n8n with ChatGPT and Perplexity as the shovel, not the boss. The math is boring and brutal: you pay by tokens in and tokens out - chunks of text. The more it “thinks,” the more you pay.

Here’s the trap. Autopilot patterns multiply calls in the background: “plan,” “reason,” “route,” “verify,” “summarize,” “explain to itself,” “embed everything,” “re-ask the question,” then “reflect on the answer.” Each hop eats tokens. Your invoice does not care if any of it helped. Defaults quietly reward verbosity too: bigger contexts, redundant safety passes, tool-discovery loops, and aggressive retrieval that yanks in random chunks “just in case.”

Typical failure I see weekly: “It looks like this model is suffering from a common ‘over-building’ habit: instead of discovering and using XY tool as instructed, it spent its ‘to

TravnikovDev

Agents move fast. They also turn your codebase into wet noodles by Friday.

I build this stuff solo. I pressure tested it with my AI helpers and real users. Here are 7 patterns that keep you shipping fast without turning everything into mush:

• Typed Prompt Function - treat a prompt like a pure function. Schema in, schema out. Validate or fail fast.
• Tool-first orchestration - keep the agent dumb, make tools smart. LLM routes, your code does the work.
• Small loops, hard stops - short plans with strict step and token budgets. Always return a status.
• Event trace + replay - record prompts, tool calls, seeds, versions. Reproduce bugs offline.
• Cache and idempotency - hash LLM calls, add idem keys to side effects. Save money, avoid double hits.
• Prompt packs with golden tests - ship prompt+schema+fixtures. Pin behavior, spot regressions quickly.

TravnikovDev

OpenClaw isn’t a tool - it’s a habit. One calendar fix, one inbox sweep, and suddenly it’s rewriting tickets, booking flights, and answering Slack like a better version of you. You feel lighter. Then the bill shows up. 💸

My AI research agent pulled the raw docs and pricing pages, and the pattern is boring and brutal: tokens are the meter. Not vibes. Every message, file, memory, summary, and “one more option” is more tokens. As your context grows, the burn creeps. Quietly.

What it is in plain English: OpenClaw is a self-hosted personal agent you wire into your life - chat, email, calendar, repos, home. It routes work to whatever models you pay for. That’s why devs love it. It actually does things. The official code lives at github.com/openclaw/openclaw, and the features move fast enough to make blog posts stale by next Tuesday.

Why it feels like a drug:

• Immediate relief from admin sludge
• It lives where you work, so switching off hurts
• You offload the fuzzy parts of work and crave that lightness

TravnikovDev

We treat glasses like a brain upgrade. Reality check: school bends your eyes a lot more than glasses bend your IQ. 👓

I had my AI research agent pull the receipts, and the pattern is blunt: more schooling tends to make eyes more myopic. A big UK dataset showed roughly a quarter-diopter shift toward nearsightedness for every extra year in school. That’s not a trope. That’s biology plus habits.

How we got here started simple. In the 1300s, only people who read for a living could afford lenses. Monks, scholars, clerks. Paint a book, paint some frames, and you’ve painted status. That visual stuck.

Modern media just kept the shorthand. Velma. Egon. Clark Kent. Take off the glasses and you’re “hot,” put them on and you’re “the brain.” Even games bake it in: Fallout perks and Pokémon’s Wise Glasses literally juice the “smart” stats. It’s a fast cue that works in half a second.

Do people read you as smarter in glasses? In Western settings, often yes. You also risk a small hit on “attractive” and “social.” Courts e

TravnikovDev

Agents are great sprinters, terrible hikers. Give them 45 minutes and they shine. Give them 4 hours and they wander off, rack up a bill, and make you clean up.

My AI research agent pulled the raw data on this using n8n + ChatGPT, and the numbers don’t lie: on realistic web tasks, agents succeed about 14% of the time while humans land around 78%. On general tool-juggling tasks, agents hit roughly 65% vs humans near 90%. Translation - long, messy, public work needs a human hand on the wheel.

Here’s the simple rule I use: let the bot sprint when the work is reversible, bounded, and quiet. If you can roll it back, measure it, and nobody outside your walls will see it, go for it. If it touches money, customers, production, or personal data, you keep the leash short.

Where 45-minute autonomy pays:

• Internal cleanup - standardize company names, enrich from one trusted API, flag low-confidence rows.
• Repo hygiene - generate tests for untested functions and open a draft pull request. No merges.
• Website QA - cra

TravnikovDev

Most AI agent setups are a grenade with the pin half-out.
You don’t need a robot butler. You need guardrails that work today.

My AI research agent pulled the raw docs and security notes on MCP, plus the OWASP hits, and the pattern is boring: trouble starts when you give tools shell, network, or write access. So here’s the minimal, safe MCP stack I run as a solo dev. I use bots as shovels, not chauffeurs. 🔒

Day-one stack - fast, boring, safe:

• Read-only filesystem scoped to one project folder - lets the model read code and docs without seeing $HOME or writing anywhere.
• Git read-only - status, diff, log - review help with zero commit risk.
• Optional local resources server in the same project dir - notes and docs without any network.