here are the relevant facts from the provided text:
* Indra Sjafri has been officially appointed as the Indonesian U-23 national team coach for the 2025 SEA Games in Thailand (December 9-20).
* The appointment was announced by PSSI on September 29th.
* PSSI officials present at the proclamation included Zainuddin amali (Deputy Chairperson) and Yunus Nusi (Secretary General).
* Indra Sjafri previously led the U-22 national team to a gold medal at the 2023 SEA Games.
* He states he is ready to take on the task with full responsibility and commitment.
* He has already begun preparations, including studying the 2025 SEA Games regulations (player numbers, competition system) and forming a coaching team.
* He will be looking for the best players born in 2003 and later.
* Players from the AFF U-23 Cup and U-23 Asian Cup qualification teams will likely form the core of the SEA Games squad.
