Lighter U + decoder

What's Changed

(Major)

• reformat U by @SCiarella in #30

(Minor)

• Fix test by @SCiarella in #19
• Bump compat by @SCiarella in #21
• [AUTO] pre-commit update by @github-actions in #22
• Dev by @SCiarella in #23
• [AUTO] pre-commit update by @github-actions in #24
• Fix test by @SCiarella in #27
• [AUTO] pre-commit update by @github-actions in #29

Full Changelog: 0.2.0...0.3.0