Investigating Google Cast: Disabling device authentication on Android with Xposed

Background

Google Cast is a proprietary protocol by Google which enables controlling playback of Internet-streamed audiovisual content on the Chromecast, Android TV and other compatible devices.

From the consumer perspective, Google Cast connects two devices: a sender (such as a smartphone) and a receiver (such… »

FIFO inventory with ledger-cli

Ledger is a powerful command-line plain-text accounting system. It has extensive built-in support for tracking complex ‘commodities’, such as currencies and inventory items, but does not support FIFO valuation.

This is a small Python script that can take input from Ledger, break down the prices… »

Melbourne to Adelaide via Ararat: Combined V/Line timetable

See here for discussion and context.

Effective 1 December 2019.

The secret, better way to get from Melbourne to Adelaide by V/Line

According to the PTV website, V/Line operates a service between Melbourne and Adelaide, via Bendigo. This is described by a V/Line timetable as the ‘Adelaide Daylink’. The journey is lengthy, but economical, particularly for those on concession fares or with large amounts of… »

Forwarding game controllers and other input over SSH

Various systems exist for remotely controlling Linux systems, such as VNC, Synergy/Barrier and other protocols like SPICE and NX. These systems, however, tend to operate at a high level, and are consequently limited in scope. For example, none of these systems support relative mouse… »

Ukulele chords from first principles: Part 2

In part 1, we derived all the common major, minor and seventh chords on the ukulele. We will now derive the remainder of the common chords – suspended (sus2/sus4), add9 (add2), augmented and diminished seventh chords.

Suspended (sus2/sus4) chords

We begin by considering the… »