Hardware

PC Deal Check

Grades a prebuilt PC's asking price against what its parts cost

Paste a US retailer link and get a letter grade with dated per-part estimates, which is quicker than pricing a GPU, CPU and RAM by hand before a sale ends.

SolidCraft

Modelling with a live feature tree, in a tab or from the command line

Sketch constraints, an editable feature history and STEP in and out, free under a permissive licence, and reachable in a browser with nothing to install.

BBRouter

Breadboard wiring you can get wrong in a browser instead of on your desk

If you have ever lost an evening hunting one miswired jumper, this models wire length, thickness and bends so the mistake shows up on screen first.

NASSCAD

Parametric solid modelling in a tab, with your files staying put

If you model the odd bracket or enclosure but resent a seat on Fusion or Onshape, this opens in a tab, costs nothing and keeps your geometry on your own machine.

BOM Manager

One parts library behind every board in the project

When a product is four boards rather than one, this is the thing that tells you what to actually order, counting the parts already in your drawer.

Autorouter Benchmark

Strip the traces off real boards, then score the routers

Anyone weighing up a PCB autorouter gets a reproducible comparison on boards humans already routed well, with the harness and the scoring in the open.

ESP-Watchtower

Turns a spare ESP8266 into a network watchdog with three decoys

For the price of a sandwich you get a device that records who knocks on your LAN and how long your internet was really down, with nothing leaving the house but a Discord message.

ZenExport

Ctrl+S in Fusion writes a numbered revision of every print file

If you slice straight from Fusion, this keeps the editable model and the mesh you actually printed under one revision name, so you can tell which file made which part.

ProvenMetal

Let Claude or Codex quote, source and order your assembled circuit boards

Hardware teams can go from a KiCad project to a priced, paid PCB assembly order inside their coding agent, with stock checks and part swaps handled.

CleanYourTV

Strip the ads and preloaded apps from an Android TV from your laptop

Millions of cheap smart TVs ship with ad-stuffed home screens, and this undoes that in minutes with a restore script if you change your mind.

Esp32sim

A Rust emulator that boots unmodified ESP32-S3 firmware, Wi-Fi included

Embedded teams can put real ESP32 binaries in CI without a board farm or a Wokwi subscription.

esp32-iphone-agent

A cheap ESP32-S3 sees an iPhone's screen and taps it for a vision model

For anyone testing or automating iOS apps, it turns a stock iPhone into an agent target for the price of a dev board, with no Mac at run time.

Flopper

GPU specs and live rental prices from 24 clouds, side by side

Before renting compute, a founder can see which accelerator gives the most memory and FLOPS per hour across 24 providers in one place.

Carrier-Explode

What each carrier pushes to iPhone, Pixel and Galaxy, decoded and diffable

When a phone loses hotspot or Wi-Fi Calling on one network, this shows the carrier config that caused it, build by build, instead of leaving you to guess.

SolidCraft

Parametric CAD in Rust for desktop, browser and AI agents, MIT or Apache

Anyone who has outgrown FreeCAD's quirks but will not pay for SolidWorks now has a permissively licensed option that an agent can drive over MCP.

ilove3d

Mesh repair, conversion and generators, all inside the tab

Nothing is uploaded, so you can run a client's scan through repair or decimation without the file leaving the laptop.

Darkplug

A darkroom enlarger timer that runs on your iPhone and a Shelly smart plug

Film printers get test strips, dodge and burn, and split-grade timing for about $45 all in, where a dedicated f-stop timer costs $300 or more.

GeaStack

Write device interfaces in TypeScript, JSX and CSS, compiled to native code

Web-skilled teams can write a device's screen interface once and ship it to an ESP32 board, a phone and a desktop without learning embedded C++ toolkits.

Low Poly Earth

The whole planet as a stylised 3D model you can fly over and photograph on a Mac

It shows how far one person can take OpenStreetMap and open elevation data, and it is free to try on any Apple silicon Mac.

Anker Power (ankered)

An unofficial Mac menu bar monitor for one Anker charger, over Bluetooth only

Owners of this charger get per-port watts, history and controls on their Mac without an Anker account or any network traffic.

Volum

A local desktop catalogue for STL, OBJ, 3MF and STEP print files

Anyone with years of downloaded print files gets previews, search and duplicate cleanup over their existing folders, with nothing uploaded and nothing moved.

InstinctFlash

A serving runtime that speeds robot policy models up for real control loops

Robotics teams whose VLA or world-action models are too slow on the robot can point this at a fine-tuned checkpoint and get measured speedups.

It is a working reminder that a binarised network fits in 20 KB and needs no multiply instruction, which matters if you ship models to tiny hardware.

DroidPutter

Run Cardputer apps on a bare ESP32-S3, with your Android phone as the screen

A few dollars of ESP32-S3 and an OTG cable stand in for the Cardputer handheld, because the phone supplies the display, keyboard, GPS and flasher.