HELIOS++ is licensed under both the GNU GPL-3.0-or-later and the GNU LGPL-3.0-or-later, allowing you to use HELIOS++ in both open source and (as a library) proprietary software. Details can be found in COPYING and COPYING.LESSER, respectively.
HELIOS++ is licensed under both the GNU GPL-3.0-or-later and the GNU LGPL-3.0-or-later, allowing you to use HELIOS++ in both open source and (as a library) proprietary software. Details can be found in COPYING and COPYING.LESSER, respectively.