# Contributions

**URL:** https://discuss.flower.ai/c/contributions/18.md

[Latest](https://discuss.flower.ai/latest.md) · [Categories](https://discuss.flower.ai/categories.md) · [Tags](https://discuss.flower.ai/tags.md)

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## [About the Contributions category](https://discuss.flower.ai/t/about-the-contributions-category/40)

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**Author:** [@flower](https://discuss.flower.ai/u/flower)\
**Replies:** 0

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Do you want to contribute to Flower? This is your channel!

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## [Hierarchical Federated Learning](https://discuss.flower.ai/t/hierarchical-federated-learning/632)

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**Author:** [@williamlm](https://discuss.flower.ai/u/williamlm)\
**Replies:** 9\
**Last updated:** [October 15, 2025, 7:29am UTC](https://discuss.flower.ai/t/hierarchical-federated-learning/632 "2025-10-15T07:29:22Z")

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Hi everyone, We are exploring the idea of introducing edge servers into a federated learning system to sit between clients and the central server. This aligns with hierarchical federated learning (HFL), where edge serve…

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## [Security Research Primitives and Attack Simulations in Flower](https://discuss.flower.ai/t/security-research-primitives-and-attack-simulations-in-flower/1006)

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**Author:** [@williamlm](https://discuss.flower.ai/u/williamlm)\
**Replies:** 0\
**Last updated:** [June 12, 2025, 3:45pm UTC](https://discuss.flower.ai/t/security-research-primitives-and-attack-simulations-in-flower/1006 "2025-06-12T15:45:44Z")

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Hi everyone, We’re exploring the idea of introducing security research primitives into Flower to support research on robustness and adversarial behavior in federated learning. This would include standardizing and expand…