Write to temporary file failed: No space left on device

**22519446416 bytes used or committed, of 25018892288 originally available
xxx.geojson: Write to temporary file failed: No space left on device**

When I run tippecanoe, I got the above error message.
Where is the temporary directory and how can I change it?
My system is ubuntu 20

Start by locating tippecanoe's temporary-file handling and reproduce the reported failure under the stated Ubuntu 20 disk-space conditions. Done means identifying the temporary directory and providing a supported way to change it.

Written by the indexing model from the issue text.