Feels like 9.8.

The internet's security forecast on your desk.

~$40 · LilyGo T5 4.7" E-Paper S3
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Plug the board in over USB-C first. Flashing takes ~1 minute and needs no build tools.

How it works

  1. Plug in your LilyGo T5 4.7" E-Paper S3 with a USB-C cable.
  2. Click "Flash VulnCast" above and pick the board's serial port (it flashes over Web Serial — no esptool, no compiler).
  3. On first boot the device raises a VulnCast-Setup Wi-Fi hotspot — join it, open the setup page, choose your network and paste your Vulners API key.
  4. Done — it starts forecasting the CVE weather. 🌩️

Prefer the command line?

Flash the same image with esptool:

esptool.py --chip esp32s3 write_flash 0x0 vulncast-1.1.4-esp32s3.factory.bin

The firmware is credential-free — you provision Wi-Fi and your API key on the device, nothing is baked in.

Verify the image

SHA-256 of vulncast-1.1.4-esp32s3.factory.bin:

d5a6d989e212cb3b9ee1c9dc0c177482fdb70f63d7d55cfe3b946e5f8286ee15

Check it before flashing: shasum -a 256 vulncast-1.1.4-esp32s3.factory.bin