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THE DAILY INDEX

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PUNYCODE: MY NEW FAVORITE ALGORITHM

Punycode is a special encoding used to convert Unicode characters to ASCII. It's deceptively simple on the surface, but there's real sophistication in how it manages the problems inherent in encoding arbitrary Unicode within DNS' ASCII-only infrastructure. The algorithm uses adaptive bias adjustment, variable-length encoding, and delta compression to achieve extremely dense results. This article looks at how to encode arbitrary Unicode within DNS's ASCII-only infrastructure. It provides a step-through visualizer at the end that lets readers watch the algorithm encode domains from various scripts.

INSTAGRAM MANDATES TOTAL RETURN TO OFFICE FOR EMPLOYEES IN 2026

Instagram employees will be required to return to the office beginning February 2. Employees will still be able to work remotely when needed, but they have been asked to use their best judgment on when to take advantage of that flexibility. Other planned changes intended to make Instagram more nimble and creative next year include the scaling back of recurring meetings and a faster process for unblocking and decision-making. While executives insist that in-person work has important benefits, employees often disagree.

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