22 lines
1.3 KiB
Markdown
22 lines
1.3 KiB
Markdown
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# Additional permission for Polar's BLE SDK
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Train's app (`apps/train/halkyon_train_flutter`) is under the GNU Affero General Public
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License, version 3 or any later version (`LICENSE`). Its Android build links Polar
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Electro Oy's Polar BLE SDK for the Polar Loop (ADR 0030, D34, D36), which is under
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Polar's *Software Development Kit Limited License Agreement*, not a free licence
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(`assets/licences/Polar_SDK_License.txt`). For that, its licensors add this permission,
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under section 7 of the GNU AGPL version 3:
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> Additional permission under GNU AGPL version 3 section 7
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>
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> If you modify this Program, or any covered work, by linking or combining it with the
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> Polar BLE SDK of Polar Electro Oy (or a modified version of that library), containing
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> parts covered by the terms of Polar's Software Development Kit Limited License
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> Agreement, the licensors of this Program grant you additional permission to convey the
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> resulting work. Corresponding Source for a non-source form of such a combination
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> shall include the source code for the parts of this Program used, but not for the
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> parts of the Polar BLE SDK used.
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The SDK's own terms still bind whoever conveys it: Polar's agreement allows its object
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code to be distributed only together with an app and to move data between Polar's
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devices and that app, and Polar may end it.
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