Tkvaa (tkvaa.com) - third-party notices
Last updated: 2026-09-17

Tkvaa uses the open-source components below, which are licensed under the GNU
Lesser General Public License (LGPL). Each one is used unmodified, as published
by its authors. Versions are the ones pinned in Tkvaa's package-lock.json.

Licence texts:
  GNU LGPL version 3: https://www.gnu.org/licenses/lgpl-3.0.txt
  GNU GPL version 3 (which the LGPL builds on): https://www.gnu.org/licenses/gpl-3.0.txt

For a copy of the source code of these components as used by Tkvaa, write to
support@tkvaa.com.


1. heic-to 1.5.2
   Licence:   LGPL-3.0 ("version 3 of the License, or (at your option) any later version")
   Source:    https://github.com/hoppergee/heic-to
   Package:   https://registry.npmjs.org/heic-to/-/heic-to-1.5.2.tgz
   Where:     sent to the browser. It loads only when a business owner uploads a
              HEIC/HEIF photo that the browser cannot open itself, and it converts
              that photo on the owner's device.
   Contains:  libheif 1.22.2 (LGPL-3.0) - https://github.com/strukturag/libheif
              libde265 1.0.16 (LGPL-3.0) - https://github.com/strukturag/libde265
              (versions as stated in the heic-to README and build notes)


2. libvips 8.17.3, in @img/sharp-libvips-linuxmusl-x64 1.2.4, used by sharp 0.34.5
   Licence:   LGPL-3.0-or-later
   Source:    https://github.com/libvips/libvips
              https://github.com/lovell/sharp-libvips (the prebuilt package and its build scripts)
   Package:   https://registry.npmjs.org/@img/sharp-libvips-linuxmusl-x64/-/sharp-libvips-linuxmusl-x64-1.2.4.tgz
   Where:     server side only (image resizing on tkvaa.com). It is not sent to browsers.
   Contains:  other LGPL-licensed libraries: glib 2.86.1, fribidi 1.0.16,
              libexif 0.6.25, libheif 1.20.2, librsvg 2.61.2, pango 1.57.0,
              proxy-libintl 0.5. The package also contains libraries under
              permissive licences (BSD, MIT, MPL-2.0, zlib and similar). The
              README.md inside the package lists every library and its licence.

   sharp 0.34.5 itself is licensed under Apache-2.0: https://github.com/lovell/sharp