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Changelog

All notable changes to this project will be documented in this file.

[0.4.0] - 2026-02-24

Added

  • Screensaver mode — --screensaver flag exits immediately on any keypress or when the terminal window gains focus. Useful for desktop screensaver integrations (e.g. termflix matrix --clean --screensaver).

[0.3.0] - 2026-02-23

Added

  • Unlimited FPS mode — --unlimited flag (and unlimited_fps config option) removes the FPS cap. Renders as fast as the terminal can actually accept data (adaptive pacing still active). Status bar shows ∞ fps.

Fixed

  • Unlimited mode quit hang — without adaptive pacing, unlimited mode flooded the terminal faster than it could drain, causing libc::write() to block for seconds and making q unresponsive. Adaptive pacing is now enabled in unlimited mode for all terminals. Added a post-write quit check as defense-in-depth for the EMA warmup period.
  • Terminal stuck in alt screen after exit — every frame starts with \x1b[?2026h (BSU begin synchronized output). If quit fires mid-write-loop, the terminal receives the begin marker but never the end marker (\x1b[?2026l), entering sync mode and buffering all subsequent data including the restore sequences. Prepending \x1b[?2026l to the restore sequence closes any pending sync block before restoring cursor and leaving alt screen. Also removed O_NONBLOCK from the restore write (was silently dropping sequences via EAGAIN if buffer was full).

[0.2.0] - 2026-02-21

Added

  • Config file support — TOML config file for persistent defaults (--init-config, --show-config)
  • Color quantization option — color_quant setting for slower terminals (reduces output at cost of color precision)

Performance

  • Adaptive frame pacing in tmux — Automatically adjusts frame rate to match tmux's actual throughput, preventing output backlog that caused choppiness, input lag, and beachball freezes
  • Color deduplication — Only emits color escape sequences when the color actually changes from the previous cell, dramatically reducing output volume for all render modes
  • Buffered output — Single write + flush per frame via manual buffer instead of per-cell execute!() calls
  • Chunked writes with quit detection — Frames written in 16KB chunks with keyboard polling between each, so quit is always responsive even under heavy output

Fixed

  • tmux split lockup — Removed blocking clear screen on resize that deadlocked when tmux's output buffer was full
  • tmux quit delay — Was taking 1+ minute to quit in tmux as buffered frames drained. Now runs tmux clear-history + refresh-client on exit for instant cleanup
  • iTerm2 lockup — Large terminals (200×50+) through tmux were generating ~5MB/s of escape sequences, overwhelming iTerm2's renderer
  • Status bar wrapping — Truncated to terminal width to prevent line wrapping artifacts
  • Resize handling — Proper cooldown and frame discarding during terminal resize events
  • Double key registration — Filter to KeyPress events only (was firing on both press and release)
  • Windows build — cfg-gate Unix-only chunked writes for cross-platform compatibility

Changed

  • Default FPS reduced from 30 to 24 (sufficient for these animations, reduces terminal load)
  • All clippy warnings resolved

[0.1.0] - 2026-02-20

Added

  • Initial release with 43 procedurally generated animations
  • 3 render modes: braille (2×4 per cell), half-block (1×2), ASCII density
  • 4 color modes: mono, ANSI 16, ANSI 256, 24-bit true color
  • Per-animation default render mode selection
  • Runtime hotkeys: cycle animations (←/→), render mode (r), color mode (c), status bar (h), quit (q)
  • Recording and playback support (.asciianim format)
  • Auto-cycle mode with configurable interval
  • Particle scale factor (--scale)
  • Clean mode (--clean) for no status bar
  • Reusable ParticleSystem generator for particle-based animations
  • Canvas set_char() for text-based animations (hackerman HUD)
  • Cross-platform installer script (install.sh)
  • CI workflow (manual trigger): test on Linux/macOS/Windows, lint
  • Release workflow (manual trigger): 5-platform builds, crates.io publish, GitHub release, Discord notification
  • Pre-commit hook: fmt → clippy → check → test → build
  • Published to crates.io and GitHub releases (all 5 platforms)