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@jackships

Jack Ships

Small web tools and iOS apps, built and shipped by one indie maker.
README.md

Jack Ships

One indie maker shipping small web tools and iOS apps. These repos are the useful bits pulled out of them: open data, tiny zero-dependency libraries and CLIs.

Repo What it is Comes from
ai-search-readiness CLI: can ChatGPT, Perplexity and Claude crawlers reach and read your site? Citelane
photo-to-coloring-page Photo → printable coloring page in the browser (demo) Linecraft
conversation-topics 910 conversation, debate, ESL and writing topics as open JSON Random Topics
promo-breakeven Discount and ad math: break-even ROAS/CPA, max discount, BOGO Evenline
product-video-specs Product video upload limits for Shopify, TikTok, Reels, Shorts, Amazon Folra
ai-video-qc One ffmpeg pass that catches broken generated videos duet.room
puppy-potty-schedule Puppy potty intervals by age and a daily schedule Puppy Routine
aion2-data Aion 2 rift schedules, resets, servers, classes, Daevanion boards Aion2 Atlas
workout-plan-schema JSON Schema + validator for workout plans Movo
spaced-repetition-lite SM-2, Leitner and an exam-date-aware scheduler Pip
zh-schedule-parser Chinese & English schedule sentences → dates and repeat rules Lili
coffee-brew-ratios Brew ratios, grind sizes, water temps + calculators Cuppa

Writing about what worked (and what didn't) on dev.to and Hashnode.

Popular repositories Loading

  1. aion2-data aion2-data Public

    Open, sourced Aion 2 data: rift schedules, resets, servers, classes, Daevanion boards (JSON)

  2. puppy-potty-schedule puppy-potty-schedule Public

    Zero-dependency JS/TS library: puppy potty intervals by age, a daily potty-break schedule, and a next-break helper.

    JavaScript

  3. photo-to-coloring-page photo-to-coloring-page Public

    Turn photos into printable coloring pages in the browser. Zero-dependency JS, Web Worker ready, no upload.

    JavaScript

  4. ai-search-readiness ai-search-readiness Public

    Zero-dependency CLI that checks if ChatGPT, Perplexity & Claude crawlers can reach, read and index your website.

    JavaScript

  5. conversation-topics conversation-topics Public

    910 hand-written conversation, icebreaker, debate, ESL and writing topics as open JSON, plus a tiny no-repeat picker.

    JavaScript

  6. promo-breakeven promo-breakeven Public

    Dependency-free math for discounts and ads: contribution margin, break-even ROAS/CPA, max discount, bundles and BOGO.

    JavaScript

Repositories

Showing 10 of 13 repositories
  • promo-breakeven Public

    Dependency-free math for discounts and ads: contribution margin, break-even ROAS/CPA, max discount, bundles and BOGO.

    jackships/promo-breakeven's past year of commit activity
    JavaScript 0 MIT 0 0 0 Updated Oct 16, 2026
  • .github Public

    Org profile

    jackships/.github's past year of commit activity
    0 0 0 0 Updated Oct 7, 2026
  • coffee-brew-ratios Public

    Coffee brew ratios, grind sizes and water temps by method (V60, AeroPress, espresso…) plus dose/water calculators.

    jackships/coffee-brew-ratios's past year of commit activity
    JavaScript 0 MIT 0 0 0 Updated Oct 7, 2026
  • zh-schedule-parser Public

    Parse short Chinese & English schedule sentences (每周一三五早上7点跑步) into dates, times and repeat rules. Zero deps.

    jackships/zh-schedule-parser's past year of commit activity
    JavaScript 0 MIT 0 0 0 Updated Oct 7, 2026
  • spaced-repetition-lite Public

    Tiny zero-dependency spaced repetition: SM-2, Leitner boxes, and an exam-date-aware scheduler. Typed ESM, node:test

    jackships/spaced-repetition-lite's past year of commit activity
    JavaScript 0 MIT 0 0 0 Updated Oct 7, 2026
  • workout-plan-schema Public

    Open JSON Schema for workout plans + zero-dependency JS validator, volume/duration stats and weekly progression expander

    jackships/workout-plan-schema's past year of commit activity
    JavaScript 0 MIT 0 0 0 Updated Oct 7, 2026
  • ai-video-qc Public

    One ffmpeg pass that catches broken videos: decode errors, truncation, wrong size, silence, black and frozen frames.

    jackships/ai-video-qc's past year of commit activity
    JavaScript 0 MIT 0 0 0 Updated Oct 7, 2026
  • product-video-specs Public

    Upload limits for product videos on Shopify, YouTube Shorts, TikTok ads, Instagram Reels ads and Amazon, plus a tiny checker.

    jackships/product-video-specs's past year of commit activity
    JavaScript 0 MIT 0 0 0 Updated Oct 7, 2026
  • conversation-topics Public

    910 hand-written conversation, icebreaker, debate, ESL and writing topics as open JSON, plus a tiny no-repeat picker.

    jackships/conversation-topics's past year of commit activity
    JavaScript 0 MIT 0 0 0 Updated Oct 7, 2026
  • ai-search-readiness Public

    Zero-dependency CLI that checks if ChatGPT, Perplexity & Claude crawlers can reach, read and index your website.

    jackships/ai-search-readiness's past year of commit activity
    JavaScript 0 MIT 0 0 0 Updated Oct 7, 2026
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