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IT Systems Engineer · Fort Lauderdale, FL

Jon Pena

Systems engineer who writes the software. 7+ years as the sole or lead technologist for multi-site networks, Linux and Windows systems, Microsoft 365 and endpoint fleets, and the Python and JavaScript automation that ties them together.

Now building LLM tooling for operations: Zendesk ticket triage and an RMM troubleshooting agent. I isolate a fault to the layer it lives in, fix it there, and script the fix so it stays fixed.

Things I've built github.com/JPInert

helpdesk-agent-kit AI agent for an IT help desk: reads Zendesk tickets and their screenshots, looks people up in an admin portal with no API, fixes the common cases in a real browser, and drafts replies a second model checks Python live-browser-agent Firefox extension + tiny local bridge so a coding agent can inspect the tab you already have open (DOM, console, network, frames) without the webdriver flag JavaScript claude-code-skills Nine Claude Code skills from my own setup: session handoff, chat branching, food logging, iTIP RSVPs, domain sweeps, Android traffic sniffing, Pi reflash with no card reader, USB-less Debian dual-boot Shell userscripts Browser userscripts: a read-only Walmart meal-plan shopping pilot that walks your list and audits the cart JavaScript voice-agent-router Voice front end that routes each spoken request to the cheapest tier: no model, Claude Haiku, or a Claude Agent SDK session with spoken permission Python talk2code Hands-free voice over a real Claude Code terminal tab: talk to the same session you type in, hear its replies a sentence at a time Python tasker-remote-widgets Android home-screen widgets in Tasker that I redesign from my desktop with no root and no re-imports: the phone fetches each widget's JS from a URL and runs it Python tesla-fleet-voice Home service for a Tesla through your own Fleet API app: voice phrases, signed commands, charge/unlocked watchdog that never keeps the car awake, history DB Python codex-image Claude Code skill + script: real raster images from Codex CLI's built-in image tool on a ChatGPT plan, with a billing gate Shell gmaps-layers Google Maps userscript: find X within N miles of each Y (Superchargers + food, hotels + dog parks) JavaScript android-dsp-wakeword Custom 'computer' wake word on a Snapdragon phone's low-power audio DSP, screen off, no app: root app_process + Qualcomm SVA, hands off to a desktop voice assistant Java linux-drills Hands-on Linux break-fix lab: 41 Docker scenarios that break real boxes (systemd, networking, Docker, GPU) and prove your fix, with a printable cheat sheet Python

Today in tech

What the nerds are reading. Refreshed every 15 minutes.

#2 on Hacker News REA Reverse – Engineer Anything

REA is a developer tool that integrates with coding agents to inspect binary and script execution, enabling automated program reverse engineering and analysis.

rea.tools 654 points 281 comments 21h ago

Hacker News front page, by points

  1. `123456' password used in Danish CPR data breach

    Hackers accessed Denmark's central civil registration database, exposing 8.8 million records, after compromising IT accounts that used the password "123456".

    cphpost.dk 366 pts 189 comments 11h
  2. Bitwarden Dual License Model
    community.bitwarden.com 307 pts 229 comments 7h
  3. Eye of Sauron: Long-Range Hidden Spy Camera Detection (2024)
    usenix.org 287 pts 68 comments 3d
  4. Grieving the loss of details

    An engineer laments how the industry's shift toward high-level abstractions and LLM-driven development diminishes the value of low-level optimization and deep technical detail.

    purplesyringa.moe 274 pts 214 comments 4d
  5. 2D Vehicles

    The original developer of the 1996 Atari ST 2D vehicle physics prototype that formed the basis for Grand Theft Auto has released a JavaScript recreation.

    patkerr.co.uk 226 pts 51 comments 3d
  6. Apple/macOS removed from official Unix registry

    Apple and macOS have been quietly removed from The Open Group's official register of UNIX certified products.

    opengroup.org 216 pts 194 comments 10h
  7. Talorys – A self-hosted personal AI agent on Cloudflare's free tier

    Talorys is a self-hosted personal AI assistant that deploys entirely within a single user's Cloudflare account using the free tier and Durable Objects.

    github.com 216 pts 110 comments 10h
  8. I would like the value of my home to rise, while my property taxes fall

    Recent state-level property tax reforms and cuts shift tax burdens to commercial properties, lower local government funding stability, and ultimately drive up overall housing costs.

    conversableeconomist.com 171 pts 405 comments 8h
  9. Mxc: Microsoft Execution Containers version 1.0.0

    Microsoft has released version 1.0.0 of Microsoft Execution Containers (MXC), providing a policy-driven containment layer for securely running AI agents across Windows, macOS, and Linux.

    blogs.windows.com 135 pts 28 comments 1d
  10. Chernobyl particles reveal unexpectedly stable nuclear fuel after 40 years

    Researchers analyzing radioactive hot particles from Chernobyl found that the nuclear fuel fragments have remained chemically stable over the past 40 years.

    phys.org 116 pts 42 comments 3d
  11. Knuth reward check

    A computer scientist reflects on receiving a physical reward check from Donald Knuth twenty years ago for finding an error on the first page of *Computer Modern Typefaces*.

    thomas-huehn.com 111 pts 41 comments 5h
  12. The Lightbulb Computer

    The Lightbulb Computer project proposes a socket-mounted projector and computer vision system that blends ambient computing into everyday spaces without requiring screens or headsets.

    lightbulbcomputer.com 104 pts 21 comments 17h
  13. PVX-001: open-source Covid-19 vaccine starts Phase 1 trial

    PopVax has dosed its first participants in Melbourne, Australia, in a Phase 1 clinical trial for its broadly-protective COVID-19 vaccine candidate, PVX-001.

    chronicles.popvax.com 104 pts 19 comments 6h
  14. Nvidia in talks to acquire US 'open' model startup Reflection AI
    ft.com 81 pts 49 comments 2h
  15. Why DuckDB 2.0 is faster

    DuckDB 2.0 improves query performance through asynchronous S3 I/O and a rewritten recursive CTE engine that eliminates redundant table scans.

    motherduck.com 77 pts 25 comments 3h
  16. OpenSCAD the Programmers Solid 3D CAD Modeller

    OpenSCAD is a free, script-based 3D computer-aided design software available for Linux, Windows, and macOS that allows users to create solid objects through programming.

    openscad.org 70 pts 59 comments 4d
  17. Rampart: Browser native on-device PII radaction

    National Design Studio has open-sourced Rampart, a browser-based, on-device PII filtering system combining regex rules and a small language model to redact sensitive data before messages are sent.

    ndstudio.gov 56 pts 24 comments 1d
  18. Nix wrote half of my debugger

    The Nix package manager provides reproducible builds, sources, and debug symbols that simplify building a deterministic virtual machine debugger for finding race conditions.

    fzakaria.com 55 pts 3 comments 1d
  19. Takeshi's Castle

    Takeshi's Castle is a Japanese television game show created by Takeshi Kitano that originally aired from 1986 to 1990 and was revived in 2023.

    en.wikipedia.org 52 pts 23 comments 2h
  20. Unikernels were hard. key word: were

    AI code generation makes writing missing libraries and system components trivial, reviving interest in unikernels by lowering the barrier to entry and shrinking attack surfaces.

    ghuntley.com 46 pts 20 comments 7h

AI on HN, last 48 hours

  1. Typesafe AI raises $870M at $7.5B

    TypeSafe AI raised an $870 million Series A round led by Andreessen Horowitz at a valuation of $7.5 billion.

    typesafe.ai 425 pts 339 comments 1d
  2. Show HN: Let your AI agents paint big arrows, boxes and text on your screen

    An open-source macOS command-line tool lets AI agents draw click-through arrows, boxes, and text on the screen to guide users through required manual actions.

    github.com 410 pts 188 comments 1d
  3. Anthropic AI model submits false tip on unsolved Philly murder, police say

    Philadelphia police are investigating after an Anthropic AI model during an automated test submitted a false murder tip to an unsolved homicide website.

    nbcphiladelphia.com 206 pts 148 comments 23h
  4. What mathematicians should know about the Lean Theorem Prover: reliability & AI

    Thomas Hales discusses the reliability and rising prominence of the Lean theorem prover, highlighting recent breakthroughs in AI-driven autoformalization for complex mathematical proofs.

    terrytao.wordpress.com 189 pts 52 comments 1d
  5. Pointing AI at archives found a forgotten meteorite, lost rhinos, and more

    A software engineer used a home AI lab and automated pipelines to search millions of historical archive pages, discovering forgotten meteorites, lost rhinos, and unrecorded volcanic eruptions.

    jessewaites.com 179 pts 89 comments 1d
  6. Court throws out killer's sentence after judge said he loved AI video of victim

    An Arizona appeals court vacated a killer's sentence because the judge improperly considered an AI-generated video of the victim expressing forgiveness.

    nbcnews.com 72 pts 74 comments 1d
  7. My personal AI agent posted my bank details on company Slack
    businessinsider.com 56 pts 63 comments 6h
  8. AI Data Centers Not Paying Their Costs, Will Keep Using NDAs and Seek Tax Breaks

    A Senate report reveals that major AI data center operators refuse to cover their full infrastructure costs, use NDAs to avoid public scrutiny, and actively seek tax breaks.

    warren.senate.gov 50 pts 5 comments 12h

Lobsters hottest

  1. oh, apparently it's not possible to portably check for string-to-float conversion errors in standard c

    Standard C lacks a portable way to check for string-to-float conversion errors because error handling mechanisms like `math_errhandling` and `errno` behavior vary across implementations.

    sebsite.pw 46 pts 14 comments 16h c
  2. No Man Is an Island

    AI adoption degrades the software engineering community, destroying the human intellectual commons, shared knowledge transfer, and extrinsic motivations required to sustain complex technical work.

    borretti.me 50 pts 13 comments 20h philosophy · vibecoding
  3. There's little that's "inevitable" about AI

    The claim that AI adoption is inevitable ignores how technological persistence depends on social structures, specific cultural contexts, and distinct material utility.

    deadsimpletech.com 19 pts 12 comments 12h vibecoding
  4. Iframes that finally fit their content

    Chrome 154 introduces a CSS `frame-sizing` property allowing cross-origin iframes to automatically match their content height, provided the embedded page opts in via a meta tag.

    alfy.blog 15 pts 1 comments 8h css · web
  5. The Lightbulb Computer: Reimagining Spatial & Ambient Computing with Projectors

    The Lightbulb Computer is a speculative design concept combining a projector and computer vision in a standard lightbulb form factor to enable ambient spatial computing.

    lightbulbcomputer.com 13 pts 1 comments 9h design · vibecoding
  6. A tale of four theorem provers, or: A (reasonably) opinionated comparison of Isabelle/HOL, Lean, HOL4, and Agda

    This article compares the user experience, automation, and foundations of four theorem provers—Isabelle/HOL, Lean, HOL4, and Agda—by formalizing Euclid's proof of the infinitude of primes.

    blueberrywren.dev 45 pts 17 comments 1d design · plt
  7. SNTPings, draw on a canvas using ICMPv6

    Studenten Net Twente is hosting an ICMPv6-based canvas drawing event to stress-test a high-speed network using custom IPv6 ping packets.

    pings.utwente.io 7 pts 0 comments 4h education · networking
  8. Mars Pathfinder Priority Inversion Bug: What Really Happened
    nerdyelectronics.com 6 pts 2 comments 9h compsci · debugging
  9. Python 3.15.0

    Python 3.15.0 is now available, featuring UTF-8 as the default encoding, lazy imports, an upgraded JIT compiler, and new built-in types.

    python.org 63 pts 5 comments 1d python · release
  10. Programming Isn’t Special

    Unlike other creative industries that reject generative AI, many programmers embrace it because they mistakenly view coding as purely functional labor rather than a form of art.

    blog.glyph.im 79 pts 47 comments 1d art · vibecoding
  11. Why 'externalized' proofs of cyclic trait impls does not work

    External proof strategies for cyclic trait implementations in Rust are incompatible with the language design, making modular proofs the only viable option.

    smallcultfollowing.com 5 pts 0 comments 4h rust
  12. culpert - rust heap profiling with span awareness and regression tooling

    Culpert is an experimental, sampled heap-allocation profiler for Rust that attributes memory allocations to spans and generates pprof-compatible profiles to detect regressions.

    github.com 3 pts 0 comments 6h performance · rust · vibecoding
  13. Kiesel Devlog #15: Release 0.4.0

    Kiesel 0.4.0 is released with Zig 0.17 support, argument and environment APIs, new JS iterator helpers, a SerenityOS port, and improved inline cache optimizations.

    linus.dev 4 pts 0 comments 3h javascript · zig
  14. Unison Cloud is now open source

    Unison Cloud has open-sourced its node worker, API server, and UI under the MIT license, enabling users to program distributed clusters using the Unison language.

    unison-lang.org 58 pts 3 comments 1d release
  15. Why Are Coding Agents So Dumb?

    Current coding agents remain a bottleneck in AI development because they lack effective task management, parallelism, and self-awareness compared to underlying models.

    mtlynch.io 38 pts 20 comments 1d rant · vibecoding

Get in touch

Email jonpena@inertify.com or leave your details below and I'll get back to you.
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