Guilherme Rambo

@_inside

I know a thing or two about AirPods. App developer, security researcher.

Florianópolis, Brazil rambo.codes Joined August 2007

1.7K Following 57K Followers 16K Posts

Latest posts 5

The glowing Apple logo on the new MacBook Pro is controllable by software. It has 25kHz PWM and per-device calibration. CoreBrightness controls the relationship between screen and logo brightness. The brightness of the logo is adjusted differently depending on the enclosure color

Guilherme Rambo @_inside 4d

macOS 27.3 renders Markdown files in QuickLook previews 👌🏻

A macOS screenshot showing the QuickLook UI with the text "Hello, QuickLook!" and "This is a Markdown file being rendered by QuickLook on macOS 27.3 beta 1." The text is formatted with a heading, Markdown in bold, and the macOS version using a monospaced font.

Guilherme Rambo @_inside 4d

Of course I had to virtualize one of the new PROLED MacBook Pros. The first thing I wanted to see: how the Dynamic Island responds to the mouse cursor.

0:16

Guilherme Rambo @_inside 4d

Code name for the touch screen hardware in the new MacBook Pros: “Kiwi” :3

Screenshot of an Apple device tree highlighting the node named "kiwi"

Guilherme Rambo @_inside 5d

Emulating the firmware for Apple’s Lightning Digital AV Adapter (dongle that runs a stripped-down version of XNU)

0:04