Senior Frontend Engineer · TypeScript React · Node.js / NestJS on the side · ex-Yandex Pay · Design systems, complex flows, animations
Joined September 2010
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DEPLOYED: Interactive in-browser playground for Turing and Post machines
Live demo: demo.machines.mellonis.ru
#TuringMachine #PostMachine #JavaScript #ComputerScience #CompSci #Programming #Algorithms
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Hook contract isn't incomplete when consumers reinvent the same coordination layer on top of it. It's at the wrong granularity. Don't widen the hook — build a companion class beside the engine.
mellonis.ru/en/articles/klas…
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"Is it the same machine?" turned out to be 3 questions, not 1:
• object — ===
• graph — serialize → rebuild
• behaviour — equivalentOn
On a flat machine they all agree. Composition makes them diverge — and === lies right after a round-trip.
mellonis.ru/en/articles/tri-…
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May 26
🏹 Seven arrows, 429 trees: a Mermaid cleanup uncovered a 7-year naming bug in my Turing-machine engine.
A naming rule I wrote in 2019 has been silently non-injective. 7-deep chain → C_7 = 429 collisions. v7 fixes it with parens.
mellonis.ru/en/articles/seve…
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May 25
v1.0.0-alpha.16 of the interactive Turing/Post machine demo just shipped — live state-graph debugger panel click-to-toggle breakpoints on state nodes. Step through a graph like a real debugger.
demo.machines.mellonis.ru
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May 21
One design choice — where the throttle lives in the iteration cycle — pins two API contracts: the engine's hook surface and the worker–main protocol. v6.2 took the wrong path, caught not by tests but by a README that wouldn't read honestly.
mellonis.ru/en/articles/pauz…
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May 21
Open-source Turing-machine engine, v7 alpha:
Subroutine composition now drawn as a function call. Wrapper = call site. Bare's reach = callable subtree. Shared bares dedupe via union-find.
Universal Mermaid — renders anywhere.
npm i @turing-machine-js/machine@next
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May 19
Per-article share buttons Medium-style quote-share popup, shipped to mellonis.ru.
8 targets, pluggable via per-locale config. Select any passage → popup pre-fills it as a quote, with locale-aware « » / " ". Tracks the selection on scroll.
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May 19
Just shipped a custom-board panel for my vanilla-TS Minesweeper.
Sliders for cols/rows/mines, the field X-rays into a live revealed preview as you drag, cascade flip when you save.
No framework — pure canvas 39 tests.
mines.mellonis.ru
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May 18
“Two majors, one README, one demo: two cheap design reviews” by Ruslan Gilmullin medium.com/@mellonis/two-maj…
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May 18
Added a bilingual articles section to the site. Markdown via unified/remark/rehype, Shiki syntax highlighting at build, hreflang per-article canonicals, ru/en parity enforced at build. Static export, no runtime.
mellonis.ru/en/articles/thre…
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May 13
Pendulum loader would be chef’s kiss for Sync Events too. Gave it a quick try — button turns into a swinging pendulum during sync, then bounces to success checkmark. What do you think? Should I also try Newton’s Cradle version with multiple balls? 👀#UI #UX #Microinteraction
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May 13
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May 11
I just published Three majors, two mistakes: designing a pause API for a Turing-machine interpreter medium.com/p/three-majors-tw…
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A 15-puzzle, but progression is cryptographically gated. The server regenerates your board from a seed, replays your moves, and only signs an Ed25519 proof if it actually ends solved. Reward: a hand-picked film poster.
Vanilla JS Vite Node.
15-puzzle.mellonis.ru
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DEPLOYED: Interactive in-browser playground for Turing and Post machines
Live demo: demo.machines.mellonis.ru
#TuringMachine #PostMachine #JavaScript #ComputerScience #CompSci #Programming #Algorithms
3
1
104
post-machine-js source code: github.com/mellonis/post-mac…
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turing-machine-js source code: github.com/mellonis/turing-m…
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Source code: github.com/mellonis/machines…
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