This would help to reduce energy consumption:
https://web.dev/native-lazy-loading/

This shoudl be trivial to implement.

Remark: no implementation so far at Mediawiki level, see https://phabricator.wikimedia.org/T230812

This class is nice. I may worth to move this in libzim's tools and use it everywhere we create a stringstream in our code.
This could even be merged with a to_string function.

Originally posted by @mgautierfr in openzim/zim-tools#158 (comment)

https://farm.openzim.org/pipeline/5ef9ad429ec57a810576f6e7/debug failed with an error -

OSError: [Errno 36] File name too long: '/tmp/tmphtp8ytv7/cache/channel_PLr5n3ojAJWjSVnG_EK1xF3rW1Lo0N2qwA,PLr5n3ojAJWjQEiRIuHlRoN7rBDKG6GbvH,PLr5n3ojAJWjRGQ1DnnIqDrIXKuuNydGid,PLr5n3ojAJWjTkqDW49ew1u7vsbVzM5Uub,PLr5n3ojAJWjSVh9mgusLb6npGNnFif_Sw,PLr5n3ojAJWjRSuu4s5Vu1CEN0rkgXZ-VA,PLr5n3ojAJWjRDmRmIVAsD4