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Show HN: A beautiful and local-first PDF reader for studying dense things

https://www.tryquincy.live
3•oleksg•2h ago
Recently, I found myself having to read the book "C++ primer" and I just couldn't do it. Maybe my attention span is too little now with Claude and Codex, maybe I'm lazy... but I just couldn't get myself to focus.

While reading, I needed something to do. I wanted to talk to the text, I wanted to leave notes, I wanted to use to use my keyboard to quickly flip through pages.

The only good available option on a Mac was "Preview" and it was ok, but definitely not there. So I built Quincy primarily for myself.

With it you can - "Talk" to the page you're reading, create a quiz about the page, and get a good summary - "Read" the page out-loud. Have your Mac read to you while you follow along. This helps with comprehension. - Copy text (to paste into an LLM), leave notes, bookmarks, etc.... - Anything else you'd want with a nice PDF reader

It's fully local. No cloud-sync (yet). All LLM calls are based on your keys. And TBH, you don't even need to use the AI features for this to be useful.

Try it out. Let me know what you guys think. This has been a quick project, so very rough around the edges. I plan on keeping it going (still haven't finished my book), and potentially open-sourcing down the line.

Show HN: Keybench – Scriptable, extensible performance tool for key value stores

https://github.com/guycipher/keybench
6•alexpadula•1h ago•0 comments

Show HN: Infinite canvas notes in the non-Euclidean Poincaré disk

https://uonr.github.io/poincake/
118•uonr•4d ago•22 comments

Show HN: Ironwall, a safety-first native programming language and compiler

12•bOZbfU4YdRnJQ•1h ago•5 comments

Show HN: VaultSQL – Open-Source Zero-Trust SQL Workbench

https://vaultsql.com/
3•antileet•1h ago•0 comments

Show HN: Aquifer – an MCP runtime for spiky agent tool traffic

https://github.com/rjpruitt16/aquifer
3•rjpruitt16•1h ago•0 comments

Show HN: A beautiful and local-first PDF reader for studying dense things

https://www.tryquincy.live
3•oleksg•2h ago•0 comments

Show HN: Soft Body Jiggle Physics

https://github.com/xloveee/jiggle-physics
51•vesperance•5d ago•19 comments

Show HN: Aegis – post-quantum cyberdefense proxy (471 attacks, 0 breaches)

https://github.com/conchaestradamiguelangel-droid/aegis
3•conchaestrada•3h ago•0 comments

Show HN: Dap-mux – Connect your editor and REPL to the same debug session

6•YesJustWolf•3h ago•1 comments

Show HN: Formally verified polygon intersection – Opus 4.8 oneshots, prev failed

https://github.com/schildep/verified-polygon-intersection
84•permute•2d ago•17 comments

Show HN: Lowfat – pluggable CLI filter that saved 91.8% of my LLM tokens

https://github.com/zdk/lowfat
146•zdkaster•1d ago•73 comments

Show HN: Typedframes – Pandas/polars column name checking at lint time

https://github.com/w-martin/typedframes
3•w-martin•4h ago•2 comments

Show HN: ABC Classic 100 Rankings visualised

https://classic100.gotski.workers.dev/
35•gotski•23h ago•17 comments

Show HN: Resonate – Low-latency, high-resolution spectral analysis

https://alexandrefrancois.org/Resonate/
3•arjf•6h ago•3 comments

Show HN: On-device transcriber that's 97% accurate at identifying speakers

https://mimicscribe.app/
27•marshalla•1d ago•8 comments

Show HN: Ccgs – Collaborative Claude Code sessions, stored in Git branches

https://github.com/ingram-technologies/claude-git-sessions
6•scrollaway•8h ago•2 comments

Show HN: Edsger – A handwritten Clojure REPL for the reMarkable 2

https://handwritten.danieljanus.pl/2026-06-01-edsger.html
258•nathell•4d ago•34 comments

Show HN: I reverse-engineered the world maps of Test Drive III (1990 DOS game)

https://github.com/s-macke/Test-Drive-3-Maps
215•s-macke•6d ago•56 comments

Show HN: Prela – Purely Algebraic Relation Combinators

https://github.com/remysucre/prela
71•remywang•5d ago•13 comments

Show HN: Scale Physics – a physics encyclopedia with WebGL animations

https://scalephysics.com/
3•WizardK•11h ago•0 comments

Show HN: StructOCR – API for parsing global passports, invoices, and containers

https://structocr.com
4•glyph_miner•12h ago•2 comments

Show HN: Uruky (EU-based Kagi alternative) now has Image Search and URL Rewrites

https://uruky.com/?il=en
232•BrunoBernardino•2d ago•224 comments

Show HN: Mercek – A Desktop IDE for AWS ECS

https://www.mercek.dev/
62•utibeumanah•2d ago•29 comments

Show HN: NullRead – A simple HN Android client

https://nullread.0x96f.dev/
4•0x96f•13h ago•1 comments

Show HN: Sub-Agent MCP: LLM delegation and sub-agent orchestration via MCP

https://github.com/stormaref/Sub-Agent-MCP
5•avestura•13h ago•0 comments

Show HN: I used to pin street parking by hand in Google Maps. Now it's an app

https://apps.apple.com/us/app/curbie/id6770876635
5•ayranlahmacun•13h ago•1 comments

Show HN: Eyeball

https://eyeball.rory.codes/
292•mrroryflint•4d ago•88 comments

Show HN: Open-source X Bookmark Manager

3•ssarisen•14h ago•1 comments

Show HN: I ported Xonotic (arena FPS) to WebAssembly with full P2P multiplayer

https://dpgame.xonotic.workers.dev/
10•astlouis44•5h ago•4 comments

Show HN: Omni – Local-first multimodal file search on macOS

https://hanxiao.io/omni/
5•artex_xh•1d ago•2 comments