Lon is a lightweight performance mod designed for low-end PCs. It tackles lag through smart chunk pre-generation, real-time server monitoring, and automatic memory management.

Key Features:

/pregen <radius> — Pre-generate chunks ahead of time to eliminate exploration lag. The generation runs safely on the server thread with batch processing to prevent strain.
/lon tps — Check server TPS with colour-coded feedback:
- 🟢 Green (≥19.0): Smooth
- 🟡 Yellow (≥15.0): Moderate load
- 🔴 Red (<15.0): Heavy lag
/lon memory — View current memory usage, total allocated, and maximum heap.
/lon memory gc — Manually trigger garbage collection and see exactly how much memory was freed.
Auto GC — Automatically triggers garbage collection when memory usage exceeds 80%, with a built-in cooldown to avoid performance impacts.
Built-in object pooling and string deduplication that silently reduce memory allocation pressure.

Commands Overview:

Command	Description
`/pregen <radius>`	Pre-generate chunks around you
`/pregen stop`	Stop active pre-generation
`/pregen status`	Check pre-generation progress
`/lon tps`	Display server TPS
`/lon memory`	Show memory usage
`/lon memory gc`	Force garbage collection

Requirements:

Minecraft 26.1.2
Fabric Loader ≥ 0.19.1
Fabric API 0.148.0+26.1.2
Java 25

Recommended Mods:
Pair Lon with Sodium, Lithium, and FerriteCore for the ultimate low-end optimization stack.

Note: An on-screen HUD (FPS/memory display) is planned but temporarily disabled due to Fabric API instability in Minecraft 26.1.2. All commands work in both single-player and multiplayer.

Enjoy smoother gameplay on your PC!