Selected work and experiments

Useful things to try.
Experiments welcome.

Working experiments and reference projects, with their scope and limits explained. Paused work can still be useful; inclusion does not imply a finished product.

24 projects 2 featured · 5 current · 17 paused

2 projects

Featured

Shareable work from the primary focus.

CodeVetter Execution-backed verification for AI-written software changes — local-first and inspectable.

Shape Desktop app macOS Prominent tools Swift · SwiftUI · Rust · SQLite Where codevetter.com Deployed

Public destinations

Why I made this codevetter.com Source Changelog Issues

Catalog kind: product
Deployment: Deployed Cloudflare Pages · Cloudflare Workers
First retained commit: Nov 30, 2025
Latest retained commit: Sep 9, 2026

PostTrainLLM An experimental browser model playground: run small language models locally with visible generation metrics.

Shape Research platform Web · Local Prominent tools Astro · Python · Rust · Cloudflare Pages Where posttrainllm.com Deployed

Public destinations

Why I made this posttrainllm.com Source Changelog Issues

Catalog kind: product
Deployment: Deployed Cloudflare Pages
First retained commit: May 21, 2026
Latest retained commit: Sep 7, 2026

5 projects

Current work

Products and platforms inside the current Fleet working set.

Live A free personality and hobby quiz that suggests a small experiment to try; account planning is not yet qualified.

Shape Web app Web Prominent tools Next.js · TypeScript · Cloudflare Workers · D1 Where live.significanthobbies.com Deployed

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Why I made this live.significanthobbies.com Source Changelog Issues

Catalog kind: product
Deployment: Deployed Cloudflare Workers
First retained commit: Mar 1, 2026
Latest retained commit: Sep 9, 2026

SaaS Maker A public directory of working experiments, reference projects and reusable tooling.

Shape Web directory and service Web · API Prominent tools Astro · Cloudflare · D1 · IssuePages Where sassmaker.com Deployed

Public destinations

Why I made this sassmaker.com Source Changelog Issues

Catalog kind: product
Deployment: Deployed Cloudflare Pages · Cloudflare Workers
First retained commit: Feb 26, 2026
Latest retained commit: Sep 9, 2026

SWE Interview Prep A learning OS for software-engineering interview practice.

Shape Learning web app Web Prominent tools React · Vite · TypeScript · Cloudflare Pages Where learn.significanthobbies.com Deployed

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Why I made this learn.significanthobbies.com Source Changelog Issues

Catalog kind: product
Deployment: Deployed Cloudflare Pages
First retained commit: Feb 8, 2026
Latest retained commit: Sep 8, 2026

Starboard Explore public GitHub repositories and related projects through a searchable discovery experiment.

Shape Web app Web · API Prominent tools Next.js · React · Cloudflare Workers · D1 Where starboard.codevetter.com Deployed

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Why I made this starboard.codevetter.com Source Changelog Issues

Catalog kind: product
Deployment: Deployed Cloudflare Workers
First retained commit: Feb 22, 2026
Latest retained commit: Sep 7, 2026

Look Sideways Explore sourced career turning points with explicit survivorship and forecasting limits.

Shape Research publication Web Prominent tools Astro · TypeScript · Cloudflare Pages Where paths.significanthobbies.com Deployed

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Why I made this paths.significanthobbies.com Source Changelog Issues

Catalog kind: product
Deployment: Deployed Cloudflare Pages
First retained commit: Jul 21, 2026
Latest retained commit: Sep 7, 2026

17 projects

More experiments · paused

Useful experiments and retained work, shared without an active development commitment.

GitStat An experimental public GitHub analysis tool for repository activity, contributions and code churn.

Shape Web app Web Prominent tools React · Vite · TypeScript · Cloudflare Pages Where git.significanthobbies.com Live archive

Public destinations

Why I made this git.significanthobbies.com Source Changelog Issues

Catalog kind: product
Deployment: Live archive Cloudflare Pages
First retained commit: Aug 21, 2026
Latest retained commit: Sep 6, 2026

Memory Map A browser-local experiment for importing a ChatGPT export, exploring semantic themes and search, and optionally saving analysis on your device.

Shape Web app Web Prominent tools Astro · TypeScript · Cloudflare Pages Where chatgpt.significanthobbies.com Live archive

Public destinations

Why I made this chatgpt.significanthobbies.com Source Changelog Issues

Catalog kind: product
Deployment: Live archive Cloudflare Pages
First retained commit: Jul 28, 2026
Latest retained commit: Sep 7, 2026

PSI Swarm Source-installed local Lighthouse audits with saved history; use the documented source setup, not the older packaged release.

Shape Local performance tool Web · CLI Prominent tools TypeScript · Lighthouse · SQLite · Astro Where performance.sassmaker.com Live archive

Public destinations

Why I made this performance.sassmaker.com Source Changelog Issues

Catalog kind: platform
Deployment: Live archive Cloudflare Pages
First retained commit: Jun 3, 2026
Latest retained commit: Sep 7, 2026

High Signal Podcasts Search evidenced podcast claims and follow links back to the original episode or publication.

Shape Podcast intelligence web app Web · API Prominent tools Astro · Hono · Cloudflare Workers · D1 Where podcasts.highsignal.app Live archive

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Why I made this podcasts.highsignal.app Source Changelog Issues

Catalog kind: product
Deployment: Live archive Cloudflare Workers
First retained commit: Aug 24, 2026
Latest retained commit: Sep 7, 2026

IssuePages Read public GitHub issues as focused articles; publishing requires repository-owner access.

Shape Issue-backed publishing website Web · GitHub Prominent tools Hono · TypeScript · Cloudflare Workers · D1 Where issues.sarthakagrawal.dev Live archive

Public destinations

Why I made this issues.sarthakagrawal.dev Source Changelog Issues

Catalog kind: experiment
Deployment: Live archive Cloudflare Workers
First retained commit: Aug 25, 2026
Latest retained commit: Sep 7, 2026

EverythingRated A ratings experiment for comparing AI developer tools, with visible small-sample counts and shareable weighting.

Shape Ratings experiment Web Prominent tools Astro · Next.js · Cloudflare Workers · D1 Where ratings.highsignal.app Live archive

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Why I made this ratings.highsignal.app Source Issues

Catalog kind: experiment
Deployment: Live archive Cloudflare Workers
First retained commit: Apr 26, 2026
Latest retained commit: Sep 7, 2026

Research Papers Search academic papers and follow original sources; account-based research chat is not yet qualified.

Shape Research library Web Prominent tools Astro · Python · React · TypeScript Where papers.highsignal.app Live archive

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Catalog kind: product
Deployment: Live archive Cloudflare Pages
First retained commit: May 30, 2026
Latest retained commit: Sep 6, 2026

Materia An educational body-and-remedy reference with condition-specific research citations and explicit uncertainty.

Shape Interactive experiment Web Prominent tools Astro · React · Three.js · Cloudflare Pages Where materia.significanthobbies.com Live archive

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Why I made this materia.significanthobbies.com Source Changelog Issues

Catalog kind: experiment
Deployment: Live archive Cloudflare Pages
First retained commit: Jun 21, 2026
Latest retained commit: Sep 6, 2026

LoopTV An experimental lean-back queue of curated science and other videos.

Shape Web app Web · TV Prominent tools Astro · React · Vite · Cloudflare Pages Where tv.significanthobbies.com Live archive

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Why I made this tv.significanthobbies.com Source Changelog Issues

Catalog kind: product
Deployment: Live archive Cloudflare Pages
First retained commit: Apr 4, 2026
Latest retained commit: Sep 7, 2026

RolePatch A guest resume-tailoring experiment with a reviewable diff and browser-local document exports.

Shape Web app Web · API Prominent tools Next.js · React · Cloudflare Workers · D1 Where rolepatch.com Live archive

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Why I made this rolepatch.com Source Changelog Issues

Catalog kind: product
Deployment: Live archive Cloudflare Workers
First retained commit: Feb 23, 2026
Latest retained commit: Sep 7, 2026

Protein Index Explore dated nutrition records with original label links, observation dates and explicit verification limits.

Shape Data API and web app Web · API Prominent tools React · Hono · Cloudflare Workers · D1 Where protein.significanthobbies.com Live archive

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Why I made this protein.significanthobbies.com Source Issues

Catalog kind: experiment
Deployment: Live archive Cloudflare Workers
First retained commit: Jul 15, 2026
Latest retained commit: Sep 7, 2026

Recipe Index Search vegetarian recipes by protein and calories, with links to the original recipe publishers.

Shape Food directory Web Prominent tools Astro · Cloudflare Pages Where veg-protein-food.significanthobbies.com Live archive

Public destinations

Why I made this veg-protein-food.significanthobbies.com Source Changelog Issues

Catalog kind: experiment
Deployment: Live archive Cloudflare Pages
First retained commit: Aug 15, 2026
Latest retained commit: Sep 6, 2026

Mashup Two playable examples of a local media-editing pipeline, with captions and inspectable source and approval receipts.

Shape Local media tool with public proof Web · CLI · Local Prominent tools Python · FFmpeg · Astro · Cloudflare Pages Where mashup.highsignal.app Live archive

Public destinations

Why I made this mashup.highsignal.app Source Issues

Catalog kind: experiment
Deployment: Live archive Cloudflare Pages
First retained commit: Jul 25, 2026
Latest retained commit: Sep 7, 2026

Web Playables Small browser-playable game experiments.

Shape Game collection Web · YouTube Playables Prominent tools TypeScript · Vite · Cloudflare Pages Where idle.aliveville.com Live archive

Public destinations

Why I made this idle.aliveville.com Source Issues

Catalog kind: experiment
Deployment: Live archive Cloudflare Pages
First retained commit: Jul 10, 2026
Latest retained commit: Sep 7, 2026

Sarthak Agrawal Selected engineering case studies, technical writing and working project demonstrations.

Shape Portfolio website Web Prominent tools Astro · React · Cloudflare Pages · IssuePages Where sarthakagrawal.dev Live archive

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Why I made this sarthakagrawal.dev Source Changelog Issues

Catalog kind: product
Deployment: Live archive Cloudflare Pages
First retained commit: May 22, 2026
Latest retained commit: Sep 7, 2026

Field Track A labelled synthetic field-team demo for exploring routes, visits and agent summaries; Android tracking is not qualified.

Shape Android app and dashboard Android · Web · API Prominent tools React Native · MapLibre · Cloudflare Workers · D1 Where field-track.sassmaker.com Live archive

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Why I made this field-track.sassmaker.com Source Changelog Issues

Catalog kind: product
Deployment: Live archive Cloudflare Workers
First retained commit: Aug 12, 2026
Latest retained commit: Sep 7, 2026

Reddit Insights Search a dated snapshot of 93 Reddit communities in your browser, with links to original posts and explicit provenance limits.

Shape Research collector Web · API Prominent tools TypeScript · Cloudflare Workers · R2 Where reddit-insights.highsignal.app Live archive

Public destinations

Why I made this reddit-insights.highsignal.app Source Issues

Catalog kind: experiment
Deployment: Live archive Cloudflare Pages · Cloudflare Workers
First retained commit: Aug 7, 2026
Latest retained commit: Sep 7, 2026