Developed a configurable retro spell learning system for the opentibiabr/canary repository, enabling servers to toggle classic spell-learning behavior through a new configuration flag. The implementation involved systematic updates to Lua-based spell logic and NPC scripting, ensuring all spells and relevant NPCs respected the retro-learning setting. Dawnport NPCs and the Rookgaard Oracle were specifically adapted to support the new flow, including vocation selection within the retro context. The solution was validated on the Canary/TFS Crystal server distribution, maintaining default behavior when disabled. This work enhanced deployment flexibility, reduced patching overhead, and supported safer experimentation with gameplay balance in game development.