Life & fun · December 12, 2025
Packet.School
Learn networking like a game
Packet.School launched on December 12, 2025 with 8 votes, #1,039 of 11,628 launches that month and more than 50% of that year's launches.
What it does
Packet.School is a free, gamified platform to learn networking fundamentals. Master OSI, TCP/IP, DNS, subnetting, and more through interactive simulations where you watch packets travel, build networks with drag-and-drop, and practice real terminal commands. Earn XP, take quizzes, unlock levels, and get a verifiable certificate when you complete all lessons. No signup required, works on mobile. Perfect for students, career changers, or anyone curious about how the internet actually works.
Discover network concepts in a fun way with interactive simulations, drag-drop network building and terminal experience!
Does a similar job
all alternatives →- IMI'm writing a free book called Computer Networks from Scratch2022 · networksfromscratch.com · ▲792
I built a(nother) house optimized for LAN parties2024 · lanparty.house · ▲1,117I wasn't quite sure if this qualified as "Show HN" given you can't really download it and try it out. However, dang said[0]: > If it's hardware or something that's not so easy to try out over the internet, find a different way to show how it actually works—a video, for example, or a detailed post with photos. Hopefully I did that? Additionally, I've put code and a detailed guide for the netboot computer management setup on GitHub: https://github.com/kentonv/lanparty Anyway, if this shouldn't have been Show HN, I apologize! [0]…
Low-Level Academy, an explorable systems programming course2020 · lowlvl.org · ▲419Introduction to UDP: sockets, frames, and data encoding. We build a Rust client for a simple name server that converts domain names into IP addresses.
A toy version of Wireshark (student project)2025 · github.com · ▲265Hi everyone, I recently published a small open-source project. It’s a minimal network packet analyzer written in Go — designed more like a learning toy than a replacement for Wireshark. It currently supports parsing basic protocols like TLS, DNS, and HTTP, and includes a tiny fuzzing engine to test payload responses. You can inspect raw packet content directly from the terminal. The output is colored for readability, and the code structure is kept simple and clear. The entire program is very small — just about 400 lines of Go code. I know it’s not anywhere near Wireshark’s level, and I still…
I built a game to help you learn neural network architectures2024 · graphgame.sabrina.dev · ▲321
More life & fun this month
the category →
A free city-building game in your browser. You are the mayor. You know what the city needs. Now get it past the zoning board, the neighbors, the appeals court and the next election.
Life & fun · 3d ago · permit.petercai.com
- IV
Life & fun · 15d ago · tanzaniaeducationproject.org
Turn a phone, tablet or TV into a sign. Type a message and it fills the screen: welcome signs, timers, Wi-Fi passwords and more. No app, no account, free.
Life & fun · 16d ago · bigwords.page
Play a free virtual guitar online with your keyboard or by touch. Slow songs down and see every chord, string and strum. Acoustic, classic, electric and bass.
Life & fun · 10d ago · guitoro.com
Carrier settings from iPhone, Pixel and Galaxy firmware, decoded and compared: APNs, VoLTE, 5G and Wi-Fi Calling per carrier, and what each build changed.
Life & fun · 14d ago · carrierexplode.com
Life & fun · 24d ago · space.bl2.net
Source: Product Hunt launch ↗
Launched alongside, December 2025
the whole month →- GP
Life & fun · Dec 2025 · dosaygo-studio.github.io
Hi everyone! My name's Luke and I made the original Jmail here alongside Riley Walz. We had a ton of friends collaborate on building out more of the app suite last night in lieue of DOJ's "Epstein files" release. Please AMA!
Life & fun · Dec 2025 · jmail.world
PlanEat AI▲733AI turns your health goals into a 7-day menu & grocery list
AI · Dec 2025 · planeatai.com
Community, All the HN belong to you. This is an archive of hacker news that fits in your browser. When I made HN Made of Primes I realized I could probably do this offline sqlite/wasm thing with the whole GBs of archive. The whole dataset. So I tried it, and this is it. Have Hacker News on your device. Go to this repo (https://github.com/DOSAYGO-STUDIO/HackerBook): you can download it. Big Query -> ETL -> npx serve docs - that's it. 20 years of HN arguments and beauty, can be yours forever. So they'll never die. Ever. It's the unkillable static archive of HN and it's…
Dev tools · Dec 2025 · hackerbook.dosaygo.com
