Released in 2201 on the one-year anniversary of the Shelf Compression Act — corporate legislation that rezoned twelve Tier 1 districts to make room for Tier 4 expansion — Threshold Cartography is a sprawling double album compiling twenty-three artists across the Shelf and Circuit underground. Organized by the anonymous collective known only as Groundworks, it was pressed onto bootleg data chips and distributed through mesh networks and dead drops in Circuit transit hubs. The album's structure mirrors a map of the demolished districts, each track named after a street or landmark that no longer exists.

The production ranges from raw Shelf noise to Circuit folk to fractured neural-ambient, unified by a bone-deep anger and a refusal to let demolished places be forgotten. Standout tracks include 'Olufemi Street (Before the Dozers)' by Thresh & The Undertow, a slow-burning dirge built on recycled demolition recordings and a single mbira loop; 'Compression Protocol' by an uncredited Shelf duo, two minutes of distorted vocals over industrial percussion that became a protest chant; and 'The Last Address,' a solo piece by Wren Abara-Lindqvist, recorded live in the rubble of the Olufemi-Strand community hall hours before it was cleared. Vantablack Media's legal division issued seventeen takedown orders. None of them worked.