v1.3.0

[1.3.0] - 2026-06-26

Added

• Big structures that exceed the Structure Block size limit (48×48×48, or 32³
  before 1.16) are now exported as a jigsaw assembly — cut into a grid of pieces
  that reassemble voxel-perfectly in-world, so a structure that previously
  wouldn't load now does. Every export path (mod workspace, Export As, Export to
  World) handles it automatically.
• Export to World — install the current build straight into a Minecraft save as
  a ready-to-run datapack, with the exact /place command to spawn it (and a
  one-click copy).
• NBT size-limit setting (Settings ▸ Viewer ▸ Structures) — Auto (from the
  workspace's Minecraft version), 48³ (1.16+) or 32³ (pre-1.16). Above the limit,
  export switches to the jigsaw assembly.
• Flatpak packaging for Linux.

Changed

• Entities (armor stands, item frames, mobs) are now carried through format
  conversions and the jigsaw split instead of being dropped.
• Reworked the export internals (split engine, a shared file writer, and a
  dedicated local-export module).
• Dependency upgrades.

Fixed

• Blank/white window on hosts without a usable GPU (VMs, headless, and some
  Wayland/Flatpak setups) — the app now falls back to software rendering
  (SwiftShader), and BW_SOFTWARE_GL=1 forces it.
• Block-editor edits now stay within the structure's declared size — no more
  placing or extruding blocks out of bounds.
• Text alignment in the in-app Guide.

Full Changelog: v1.2.0...v1.3.0