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Weak copyleft

GNU Lesser General Public License v3.0

Library-oriented weak copyleft that generally allows linking from differently licensed applications under conditions.

Compared to common options: Weaker than GPL-3.0/AGPL for apps that only link; stronger than MIT/Apache on library modifications.

Generally allows

Commercial use
Modification
Distribution
Patent use
Private use

Typically requires

Disclose source for the LGPL library (and modifications) when you distribute it
Allow reverse engineering for debugging those modifications
Include license notices

Watch-outs

Closing the library itself without meeting LGPL terms

How teams usually use it

Common for shared libraries where applications may remain under another license.
If you modify the library, plan how recipients get corresponding source.
Verify whether your packaging, static linking, or SaaS distribution model needs counsel review.

Official & reference sources

Orientation only — not legal advice. Always verify the repository LICENSE file, notices, and dependency terms, and obtain counsel for commercial distribution decisions.