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2.catalog-image a:hover{background:0 0;border:none;opacity:.9}@media screen and (max-width:48em){.catalog-item{display:flex;flex-direction:column;gap:1.25rem;align-items:stretch}.catalog-item .catalog-image{order:-1}.catalog-item.book-cover .catalog-image img{margin:0 auto}}.patent-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1.5rem;margin:2rem 0}.patent-card{border:1px solid var(--color-border);border-radius:8px;overflow:hidden;transition:transform .2s ease,box-shadow .3s ease}.patent-card:hover{transform:translateY(-4px);box-shadow:0 4px 12px rgba(0,0,0,.15)}.patent-card a{border:none;background:0 0;padding:0;display:block}.patent-card a:hover{background:0 0;border:none}.patent-card img{width:100%;height:auto;display:block}.patent-card-title{padding:1rem;font-size:18px;text-align:center;font-weight:600}</style><link rel=alternate type=application/rss+xml href=https://zhubert.com/index.xml title=zhubert></head><body><header><nav><ul><li><h1><a href=/ class=logo-link><img src=/zack.png alt=Home class=logo-portrait></a></h1></li></ul></nav></header><main><div class=bio-card><div class=bio-content><h2>Zack Hubert</h2><p>Engineering leader. Founder. Novelist. Two patents. One book. Lots of code.</p></div><img src=/zack.png alt="Zack Hubert"></div><section class=catalog-section><h2>Projects</h2><article class="catalog-item has-image"><div class=catalog-content><h3><a href=https://clevercrow.io>CleverCrow</a></h3><span class=catalog-meta>2026</span><p>Built a way for open source maintainers to get paid to work their backlog. Users back the GitHub issues they care about, and when a merged PR closes one, the pool pays out to the maintainer. No workflow changes, no bounty-hunting PR races, just little by little.</p></div><div class=catalog-image><a href=https://clevercrow.io><img src=/clevercrow.jpg alt=CleverCrow></a></div></article><article class=catalog-item><div class=catalog-content><h3><a href=https://www.zhubert.com/erg>Erg</a></h3><span class=catalog-meta>2026 · <span class=catalog-flag>Archived</span></span><p>Built a workflow orchestrator for Claude Code. It watches your issue tracker, spins up containerized AI sessions to implement the work, creates PRs, handles review feedback, monitors CI, and auto-merges. Written in Go, available via Homebrew.</p></div></article><article class=catalog-item><div class=catalog-content><h3><a href=https://www.zhubert.com/plural>Plural</a></h3><span class=catalog-meta>2026 · <span class=catalog-flag>Archived</span></span><p>Built a CLI for running parallel Claude sessions. Because sometimes you want to try three different approaches without losing your place. Written in Go, available via Homebrew.</p></div></article><article class=catalog-item><div class=catalog-content><h3><a href=https://www.zhubert.com/rush>Rush Programming Language</a></h3><span class=catalog-meta>2025 · <span class=catalog-flag>Archived</span></span><p>Built an experimental programming language from scratch using AI pair programming. Functional + OO paradigms, three-tiered execution (interpreter â bytecode VM â ARM64 JIT), and surprisingly fun to write.</p></div></article><article class=catalog-item><div class=catalog-content><h3><a href=https://www.zhubert.com/intro-to-transformers>Intro to Transformers</a></h3><span class=catalog-meta>2025</span><p>Wrote a book that teaches transformer architecture from first principles. Covers building transformers, understanding gradients, and generating images from noise.</p></div></article><article class="catalog-item has-image book-cover"><div class=catalog-content><h3><a href=https://www.amazon.com/Singular-Zack-Hubert-ebook/dp/B06X3VGBVP/>Singular</a></h3><span class=catalog-meta>2017</span><p>Wrote a science fiction novel called <em>Singular</em>. Vintage computers, artificial intelligence gone rogue, the fate of humanity.</p></div><div class=catalog-image><a href=https://www.amazon.com/Singular-Zack-Hubert-ebook/dp/B06X3VGBVP/><img src=/singular-cover.jpg alt=Singular></a></div></article></section><section class=catalog-section><h2>Work</h2><article class="catalog-item has-image"><div class=catalog-content><h3>Planning Center</h3><span class=catalog-meta>2012 â present</span><ul class=role-progression><li>Director of Engineering <span class=role-years>2026 â present</span></li><li>Senior Engineering Manager <span class=role-years>2025 â 2026</span></li><li>Software Engineering Manager <span class=role-years>2024 â 2025</span></li><li>
2Senior Software Developer <span class=role-years>2012 â 2024</span></li></ul><p>Leading engineering teams at Planning Center. We build tools that help churches help people.</p></div><div class=catalog-image><img src=/planning-center.png alt="Zack Hubert"></div></article><article class=catalog-item><div class=catalog-content><h3>The City</h3><span class=catalog-meta>Founder · 2008 â 2011</span><p>Built a social network for churches from scratch. Grew it to nearly a million users before Zondervan acquired it.</p></div></article><article class=catalog-item><div class=catalog-content><h3>Amazon</h3><span class=catalog-meta>1999 â 2007</span><ul class=role-progression><li>Manager / Senior Manager, Software Development <span class=role-years>2004 â 2007</span></li><li>Senior Website Engineer <span class=role-years>1999 â 2004</span></li></ul><p>Built pricing algorithms and anomaly detection systems before “data science” was even a thing. Earned two patents.</p></div></article><article class=catalog-item><div class=catalog-content><h3>Los Alamos National Lab</h3><span class=catalog-meta>Intern</span><p>Wrote modeling software for the Sudbury Neutrino Observatory. I had a virtually insignificant role, but the project’s chief scientist won the <a href=https://www.nobelprize.org/prizes/physics/2015/summary/>2015 Nobel Prize in Physics</a> so it’s still cool!</p></div></article></section><section class=catalog-section><h2>Patents</h2><div class=patent-grid><div class=patent-card><a href=/7574382.pdf><img src=/7574382-thumb.jpg alt="Anomaly Detection"><div class=patent-card-title>Anomaly Detection<br>US Patent 7,574,382</div></a></div><div class=patent-card><a href=/7740172.pdf><img src=/7740172-thumb.jpg alt="Competitive Pricing"><div class=patent-card-title>Competitive Pricing<br>US Patent 7,740,172</div></a></div></div></section></main><footer><p>Copyright 2026. All rights reserved.</p></footer></body></html>
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