In this text, it appears that there are several characters who have scheduled meetings with one another in Catville on December 1st, 2025. Here's a summary of the planned meetings and gatherings:

1. Mei and Diego will discuss their overlapping projects at Caroline's Café at 3 PM.
2. Leo and Samantha will grab coffee after Samantha's meeting with Caroline and discuss neighborhood strays, music, and potential collaboration. They have agreed to meet on December 1st, 2025, at 4 PM at Caroline's Café.
3. Andy and Caroline will discuss their AI project at Caroline's Café around 2 PM. Noor will also be joining them.
4. Samantha and Noor have agreed to meet at Caroline's Café on December 1st, 2025, at 6 PM.
5. Andy, Diego, and Mei (with Noor) will meet under the oak tree on Wednesday at 1 PM for a discussion about their shared AI projects.
6. Leo, Mei, Samantha, and Peter will meet up at the park on Sunday, December 1st, at 2 PM under the old oak tree for a chat over tea to discuss their potential AI music collaboration.