Translation for convenience; the Portuguese version prevails.

Third-party licenses

The Hash Commander application is software by Hash Commander (hashcommander4@gmail.com), all rights reserved, and uses third-party components under their licenses. Hash Commander OS (firmware) is a work derived from open-source projects and keeps the original licenses.

Hash Commander OS (firmware)

Component	License	Notes
Hash Commander OS for NerdQAxe++ (base: NerdQAxe++ firmware by shufps and contributors, ESP-Miner-NerdQAxePlus)	GPL-3.0 (repository LICENSE file; also stated in the README)	Derived work: distributed under GPL-3.0
Hash Commander OS for Bitaxe (base: bitaxeorg ESP-Miner, including the AxeOS web interface)	GPL-3.0 (repository LICENSE file)	Derived work: distributed under GPL-3.0
ESP-IDF (Espressif)	Apache-2.0
LVGL (screen graphics)	MIT
Other firmware libraries	See each source code folder	To be inventoried before publishing

GPL obligations when distributing the .bin files

Keep the copyright notices and the license text in the repository and on the site.
Make the corresponding source code available for each binary (a public repository with the exact version, or a written offer) for as long as you distribute the binary. If the code leaves GitHub it must be kept somewhere else public and the site must link there.
State the changes made and their dates.
Do not impose additional restrictions on the firmware (do not apply the app's "all rights reserved" clause to the firmware).
The digital signature of the update .bin files does not remove the need for the source code; the installation clause (anti-tivoization) of the GPL-3.0 should be reviewed by a lawyer.

Desktop application

Component	License (to be confirmed)
Python (runtime and standard library)	PSF License
websocket-client	Apache-2.0
Tray, interface, cryptography and packaging libraries used in the build	Inventory with pip-licenses before each release
Lightning wallet component	[see internal list; include the notice the license requires, without describing the internal workings]
Fonts, icons and images	Check the license of each one

Trademarks and services

Bitcoin, Nostr, Lightning, Bitaxe, NerdQAxe, Binance, mempool.space, Telegram, etc. belong to their respective owners. Hash Commander is not affiliated with or endorsed by them; the names are used only to indicate compatibility.

Notice for the Hash Commander OS firmware

License: Hash Commander OS is distributed under the GNU General Public License, version 3 (GPL-3.0). Full text: https://www.gnu.org/licenses/gpl-3.0.html. Each firmware repository includes a LICENSE file with the same text.
Rights holders: the Hash Commander OS additions carry a "Copyright (C) 2026" header and refer to the GPL v3 in the files under main/hcos/. The rest of the code belongs to the authors and contributors of the original projects (NerdQAxe++: shufps and contributors; Bitaxe: the bitaxeorg ESP-Miner project). We have not verified the full list of rights holders or the copyright notices of the Bitaxe base; the original notices remain in the source code.
Source code: the corresponding source code of each version is published alongside the binaries, in files named hcos-source-*.tar.gz, listed on the Hash Commander OS page (/hcos/) of this site.
Changes: what was added to the NerdQAxe++ base is described in the repository README (mainly in main/hcos/ and a few one-line hooks).
Other components: the full inventory of third-party libraries included in the firmware (with versions and license texts) has not been done yet, and the license of components such as the AxeOS interface (which ships its own license file) has not been verified by us.
No warranty: as the GPL-3.0 states, the firmware is provided without warranty. It is not an official manufacturer firmware.

This is a template and does not replace legal advice; for commercial use a review by a lawyer is advisable.