Show HN: My public second brain – 660 notes, 15 years, open source https://ift.tt/tehao3N

Show HN: My public second brain – 660 notes, 15 years, open source Author here. ~660 notes published from a private Obsidian vault of 8,360 (3M words). Started in OneNote around 2011, moved to Obsidian in 2021 [1], imported everything with a Python script [2]. Notes are compounding over time, and that is where my writing comes from. The Semantic Layer note started in 2022, became a four-part blog series, then a chapter of my book. Materialized Views, One Big Table, dbt and OLAP were separate notes written years apart. I only later noticed they were the same pattern, and that became another chapter. Publishing: add #publish to a note, run `make deploy`. Quartz + Hugo, rsync to my own server [3]. Code [4]. Semantic search over the graph [5]. [1] https://ift.tt/ZcFKepP [2] https://ift.tt/CrA9f0g... [3] https://ift.tt/dPZNoSx [4] https://ift.tt/QEC8AfB [5] https://explore.ssp.sh https://ift.tt/orXYApz August 3, 2026 at 01:12AM

Show HN: I added a client-side SQL sanitizer so schema never touches our servers https://ift.tt/DuoKZbz

Show HN: I added a client-side SQL sanitizer so schema never touches our servers https://ift.tt/IEixhWy August 2, 2026 at 10:49PM

Show HN: OpenLongevity – Longevity × AI – open, verifiable, for everyone https://ift.tt/ZNgVnU3

Show HN: OpenLongevity – Longevity × AI – open, verifiable, for everyone https://ift.tt/6zxlVi2 August 2, 2026 at 12:02AM

Show HN: BillDesk – Offline invoicing for freelancers (Windows and Mac) https://ift.tt/STlcJts

Show HN: BillDesk – Offline invoicing for freelancers (Windows and Mac) https://getbilldesk.vercel.app August 1, 2026 at 09:52PM

Show HN: Slope remade in HTML5 to load instantly on any browser, any device https://ift.tt/nkoXOqa

Show HN: Slope remade in HTML5 to load instantly on any browser, any device A whole free daily game served in under 100kb with no ads, lags or logins. The URL will serve a new track every day, forever. And I've added setting sliders so players have full control over their experience. Would love to know your thoughts guys. This was just me working with Claude Opus 5. Cheers, Nathan https://hurtle.site/ July 31, 2026 at 10:41PM

Show HN: Tally – check a spreadsheet's numbers against their source, in-browser https://ift.tt/Y5mzBFO

Show HN: Tally – check a spreadsheet's numbers against their source, in-browser https://ift.tt/0hOCQe5 July 30, 2026 at 11:25PM

Show HN: Capitolisation – Trade like the bests elected officials https://ift.tt/B0oxD1W

Show HN: Capitolisation – Trade like the bests elected officials Elected officials tend to overperform S&P500. The goal is to show disclosures to detect trends. https://ift.tt/qk7QhTt July 30, 2026 at 12:22AM