Worked on enhancing the PlanB-Network/bitcoin-educational-content repository by improving the Indonesian translation and proofreading of the LNP201 Lightning Network course material. Focused on refining technical accuracy and clarity for learners, the effort involved meticulous content improvement and technical writing, ensuring that translated materials met high standards for localization. The process included targeted proofreading and translation using Markdown, with changes tracked through a single, well-documented commit linked to a specific ticket for traceability. This work strengthened the localization workflow, making future content updates more consistent and reliable, and contributed to the overall quality and accessibility of the educational content.