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Show HN: Summa, a tool that annotates over whatever you're reading

https://summa.josephruocco.net
3•jruocco•1h ago

Comments

jruocco•1h ago
Hi all!

I made a tool that adds highlights to whatever you’re reading like a Norton Critical Edition using AI. Works well when reading a classic text in iBooks, Kindle or Project Gutenberg on macOS.

Built with ScreenCaptureKit + OCR, it maps the text, draws highlights which you can hover over.

There are demos for texts like Moby Dick, Wuthering Heights, and Montaigne's Of Experience that you can check out in your browser. Here's the White Whale chapter in Moby Dick: https://summa.josephruocco.net/demos/md_ch42/chapter.html

Appreciate any feedback.

So long r/rust, and thanks for all the Slop!

https://old.reddit.com/r/rust/comments/1uwmef6/so_long_rrust_and_thanks_for_all_the_slop/
1•bel8•58s ago•0 comments

Show HN: Betula Fuzzy Search

https://gist.github.com/overflowy/9b6d30c7b65dd23c8899636595d88227
1•overflowy•2m ago•0 comments

Mimesys: Turn Resource Usage Traces into Executable Workloads

https://www.usenix.org/conference/osdi26/presentation/kim-donghyun
1•matt_d•3m ago•1 comments

Alman: German, Simplified

https://alman.ai/
1•tosh•3m ago•0 comments

Murati's Thinking Machines Releases Open-Weights 975B Parameter LLM

https://thinkingmachines.ai/inkling/
2•htrp•3m ago•1 comments

Disposable Software

https://seths.blog/2026/07/disposable-software/
3•herbertl•5m ago•0 comments

C Strings: A 50-Year Mistake – By Trần Thành Long

https://longtran2904.substack.com/p/c-strings-a-50-year-mistake
2•rbanffy•5m ago•0 comments

Sorel Caribou Boots: Great Product, Disappointing Online Shop

https://micro.mjanssen.nl/2026/07/15/200303.html
1•marc0janssen•5m ago•0 comments

Inkling: Our Open-Weights Model

https://thinkingmachines.ai/news/introducing-inkling/
5•vimarsh6739•5m ago•0 comments

Odyssey Linux – a Void-based distro trying to make no-systemd approachable

https://linuxcommunity.io/t/odyssey-linux-a-void-based-distro-trying-to-make-no-systemd-approacha...
1•ashitlerferad•6m ago•0 comments

Show HN: How you auto recover your Claude Code workflow when quota resumes

https://github.com/softcane/cc-session-recover
1•pradeep1177•8m ago•0 comments

The Fight over Humanoid Robots Has Shut Down a Car Factory for the First Time

https://www.wsj.com/business/autos/the-fight-over-humanoid-robots-has-shut-down-a-car-factory-for...
1•bookofjoe•9m ago•2 comments

Show HN: Tarit – a hypervisor which is 2x faster than firecracker

https://github.com/instavm/tarit
1•mkagenius•9m ago•0 comments

Kilocode Acquired by Anaconda

https://www.anaconda.com/blog/kilo-code-joins-anaconda-what-builders-should-know
2•datadrivenangel•11m ago•0 comments

Universal gates from braiding and fusing anyons on quantum hardware

https://www.nature.com/articles/s41586-026-10709-y
2•sbulaev•11m ago•0 comments

Agentic Misalignment in Summer 2026

https://alignment.anthropic.com/2026/agentic-misalignment-summer-2026/
1•lucamark•11m ago•0 comments

Steam Game Cartridges

https://old.reddit.com/r/pcmasterrace/comments/1ux13ui/steam_game_cartridges/
2•ShroudedNight•13m ago•0 comments

State of DESIGN.md 2026 – Survey results

https://getdesign.md/state-of-design-md
2•omeraplak•14m ago•1 comments

Suno hacked, leak reveals scraping data

https://xcancel.com/jason_koebler/status/2077393545850409308?s=20
2•hmokiguess•16m ago•2 comments

Show HN: ForkUnion v3 – Faster OpenMP-style thread-pool for C, C++, Rust, & Zig

https://github.com/ashvardanian/ForkUnion
1•ashvardanian•18m ago•0 comments

A webring for people offering Unoffice Hours

https://unofficehours.com/
1•rekl•18m ago•0 comments

Beyond lithium: how sodium-ion batteries could change the world

https://www.nature.com/articles/d41586-026-02150-y
2•SiempreViernes•18m ago•0 comments

Scrum Doesn't Matter (and It Never Did)

https://kasperowski.com/scrum-doesnt-matter-and-it-never-did/
2•mooreds•19m ago•0 comments

Show HN: Class-diff: A Pharo classes comparer using Needleman-Wunsch

https://github.com/hernanmd/class-diff
1•hernanmd•20m ago•0 comments

Fourteen months of LeafWiki (OSS), in small moments

https://leafwiki.com/blog/fourteen-months-of-leafwiki/
1•perber•21m ago•0 comments

Anthropic, Blackstone, and Hellman and Friedman Introduce Ode with Anthropic

https://www.businesswire.com/news/home/20260715205134/en/Anthropic-Blackstone-and-Hellman-Friedma...
1•petethomas•21m ago•0 comments

House passes bill to make daylight saving time permanent

https://apnews.com/article/daylight-saving-time-house-passes-bill-53e7ffd1c3e9beddb9ab1601a8482ad5
1•speckx•23m ago•2 comments

Airport Food

https://pablostanley.substack.com/p/airport-food
1•pablostanley•24m ago•0 comments

3D interactive map of the local universe

https://knowtheuniverse.com/
1•wanda•24m ago•0 comments

The Scariest Chart in Electrical Engineering [video]

https://www.youtube.com/watch?v=GK2pZ_oVU1o
3•jonbaer•24m ago•0 comments