Gistbyte - Hacker News Stories for October 15, 2026

1. Show HN: Theorem – Offline PDF/ePub reader that writes highlights to Local Vault (theorem.fundaments.work)

Read PDFs, EPUBs, and RSS feeds offline. Highlight, draw, and annotate — then sync to Obsidian or Logseq as plain Markdown. Open source. No cloud. No subscription.

5 points by sapienskid 7 days ago 0 comments

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2. Ask HN: Only one link appearing on HN?

5 points by datas 7 days ago 8 comments

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3. Capsem – a Rust hypervisor sandboxing AI agents in air-gapped Linux VMs (capsem.org)

The fastest way to ship with AI securely.

Capsem offers a secure method for deploying AI agents using a Rust-based hypervisor, specifically designed for air-gapped Linux virtual machines. This approach emphasizes speed and security, making it an intriguing solution for those looking to integrate AI safely.

5 points by madars 7 days ago 1 comments

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4. Twitterwebviewer.net Is Back Online

4 points by orange999 6 days ago 0 comments

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5. Ask HN: Apple HomeView. What problem is Apple Home solving?

4 points by NarcisMirandes 7 days ago 13 comments

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6. Show HN: Textfold – a native Mac text expander with plain text snippets (textfold.app)

Textfold is a fast, native text expander for Mac: snippets, fill-in forms and date math in every app. Free for 10 snippets, Pro is a one-time purchase.

4 points by jeyanth 7 days ago 1 comments

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7. Show HN: Hardwired - turn JS into a neural net (chenglou.me)

Turn your regular JavaScript code into a neural net. No training, exact yet also fully differentiable, runnable in a browser without GPU.

4 points by dvrp 7 days ago 2 comments

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8. Show HN: I'll Call You Later, an interactive 3D browser short film (film.jashtechno.com)

A short film rendered live in your browser. Written, directed, performed and engineered by Jash Palleti.

4 points by Jashwanth_13 7 days ago 1 comments

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9. Show HN: GitVolt, open source fast Git GUI (Tauri/CEF) (gitvolt.com)

A fast, keyboard-friendly desktop Git client with a commit graph at its heart. Free and MIT licensed; Linux, Windows and macOS.

4 points by francislavoie 7 days ago 0 comments

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10. Show HN: server-noonien – conflict-free agent memory across machines, no server (github.com)

Shared, serverless, conflict-free memory for AI agents — a multi-machine drop-in for the MCP memory knowledge graph - sequico/server-noonien

3 points by sequico 7 days ago 0 comments

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11. Show HN: Rails-preflight, a static check of what blocks your next Rails upgrade (github.com)

Answers one question about a Rails app: what stands between it and Rails X? Scans the lockfile, Ruby version, Dockerfile, schema, config and code, then writes a single HTML report of blockers, fixe...

3 points by aslamsha 7 days ago 0 comments

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12. Show HN: TowerPanic – a family party game on a small FastAPI realtime engine (towerpanic.com)

A quick multiplayer party game for families and friends. Play in the browser on phones, tablets and laptops, nothing to install. Private games only: no strangers, no chat, no ads.

3 points by ms209495 7 days ago 4 comments

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13. Show HN: Give (low vRAM) local sLLMs codebase-wide context with SQLite (attempt) (github.com)

Local-first (Private) AI coding tool, specifically for low VRAM (~6gb). Understands your codebase structurally, and edits with precision - govindgcoder/arcKode

3 points by iamgovindg 7 days ago 0 comments

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14. Show HN: I think Apple should have built this a long time ago (copytap.netlify.app)

CopyTap gives your Mac three clipboard slots using the copy and paste shortcuts you already know.

3 points by zacattackjuice 7 days ago 3 comments

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15. Show HN: Guess the LLM – read an answer and guess which model wrote it (guessthellm.com)

Read an answer from an LLM and guess which model wrote it.

2 points by aravindnatch 6 days ago 1 comments

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16. Show HN: Forwarder.cc – Static-site forms sent to your inbox, pay per message (forwarder.cc)

Point your HTML form at Forwarder.cc and every submission lands in your inbox. No server, no subscription: 1 credit per message, 50 free to start.

2 points by calyhre 6 days ago 0 comments

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17. Show HN: BitRun v0.2 – Run 8B ternary LLMs on CPU with live wattage telemetry (github.com)

Zero-compile runner and terminal Cockpit for 1-bit / 1.58-bit ternary LLMs on CPU. Real-time wattage telemetry, 70+ t/s on laptops, and 8B model support (macOS, Windows, Linux) - IshekKhal/bitrun

2 points by ishekofficial 6 days ago 0 comments

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18. Show HN: An animated explainer on how TCP handles packet loss (eyad.com)

The internet loses pieces of everything you send. A short animated film about how it still arrives whole (TCP), and a playground where you can try to break it.

2 points by eyadnour 6 days ago 0 comments

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19. Show HN: VX – I got tired of Turbo and Nx, so I built vx (vznjs.github.io)

Correct, sandboxed, extensible task orchestration. Plugins decide where tasks run and where the cache lives. MIT, no cloud, no account.

2 points by exelord 6 days ago 0 comments

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20. Show HN: I built a 3D semiconductor fab in the browser – design your own terafab (semiconfab.org)

Explore a source-available 300mm semiconductor fab digital twin: architectural cleanroom layout, subfab utility loops, 121 OEM equipment taxonomy, cascading yield modeling, and real-time SECS/GEM telemetry.

2 points by jinjiefan2018 6 days ago 0 comments

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21. Show HN: Council AI. Spot biases / hallucinations in top AI models (councilai.app)

Wisdom of the AI crowd. Ask several leading AIs at once and see where they agree. For decisions that need a second opinion. Or a third. Or a fourth.

2 points by phinnutz 6 days ago 0 comments

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22. Show HN: Arneb – A Trino-compatible distributed SQL engine in Rust (arneb.io)

A distributed SQL query engine built in Rust

2 points by jackypan1989 7 days ago 0 comments

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23. Show HN: Mordiem – OpenAI-compatible API with multi-network failover (mordiem.com)

One OpenAI-compatible API for every model. Point any OpenAI SDK at Mordiem. Own your inference.

2 points by mordiem 7 days ago 0 comments

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24. Show HN: Netlumi – Cloud and AI agent security with auto-remediation PRs (app.netlumi.com)

Code-to-cloud and AI security for AWS, with Azure and GCP in Early Access. Netlumi scans your cloud accounts and your code, then opens pull requests with the fixes.

2 points by 2511 7 days ago 0 comments

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25. Show HN: Custom Firmware for Insta360 Wave (xaviergeerinck.github.io)

Open firmware for the Insta360 Wave speakerphone: no telemetry, recordings that go only where you send them, and one script back to stock.

2 points by thebillkidy 7 days ago 0 comments

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26. Show HN: Are interstellar visitors alien probes? (hyperbolic.lucent.tools)

Would a planned path through the solar system give itself away? The three interstellar visitors, scored in bits against calibrated chance.

2 points by Lucent 7 days ago 0 comments

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1. Show HN: Theorem – Offline PDF/ePub reader that writes highlights to Local Vault (theorem.fundaments.work)

2. Ask HN: Only one link appearing on HN?

3. Capsem – a Rust hypervisor sandboxing AI agents in air-gapped Linux VMs (capsem.org)

4. Twitterwebviewer.net Is Back Online

5. Ask HN: Apple HomeView. What problem is Apple Home solving?

6. Show HN: Textfold – a native Mac text expander with plain text snippets (textfold.app)

7. Show HN: Hardwired - turn JS into a neural net (chenglou.me)

8. Show HN: I'll Call You Later, an interactive 3D browser short film (film.jashtechno.com)

9. Show HN: GitVolt, open source fast Git GUI (Tauri/CEF) (gitvolt.com)

10. Show HN: server-noonien – conflict-free agent memory across machines, no server (github.com)

11. Show HN: Rails-preflight, a static check of what blocks your next Rails upgrade (github.com)

12. Show HN: TowerPanic – a family party game on a small FastAPI realtime engine (towerpanic.com)

13. Show HN: Give (low vRAM) local sLLMs codebase-wide context with SQLite (attempt) (github.com)

14. Show HN: I think Apple should have built this a long time ago (copytap.netlify.app)

15. Show HN: Guess the LLM – read an answer and guess which model wrote it (guessthellm.com)

16. Show HN: Forwarder.cc – Static-site forms sent to your inbox, pay per message (forwarder.cc)

17. Show HN: BitRun v0.2 – Run 8B ternary LLMs on CPU with live wattage telemetry (github.com)

18. Show HN: An animated explainer on how TCP handles packet loss (eyad.com)

19. Show HN: VX – I got tired of Turbo and Nx, so I built vx (vznjs.github.io)

20. Show HN: I built a 3D semiconductor fab in the browser – design your own terafab (semiconfab.org)

21. Show HN: Council AI. Spot biases / hallucinations in top AI models (councilai.app)

22. Show HN: Arneb – A Trino-compatible distributed SQL engine in Rust (arneb.io)

23. Show HN: Mordiem – OpenAI-compatible API with multi-network failover (mordiem.com)

24. Show HN: Netlumi – Cloud and AI agent security with auto-remediation PRs (app.netlumi.com)

25. Show HN: Custom Firmware for Insta360 Wave (xaviergeerinck.github.io)

26. Show HN: Are interstellar visitors alien probes? (hyperbolic.lucent.tools)

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