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Qucs-S is spin-off of Qucs. See for details.
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Qucs-S is a spin-off of Qucs. It allows to use several SPICE and non-SPICE simulation kernels. See for more details. It is based on original Qucs code:

Build instructions

Use CMake to build Qucs-S. Install all necessary dependecies: GCC, Qt, and SPICE (optional). Clone this git repository and execute in the top directory:

mkdir builddir
cd builddir
cmake ..  -DCMAKE_INSTALL_PREFIX=/your_install_prefix/
make install

Where /your_install_prefix/ is desired installation directory. Substitute any desire path (for example $HOME/qucs-s) here. You may omit this option and installation steps. Default installation directory will be /usr/local if CMAKE_INSTALL_PREFIX is not defined.

Then run qucs-s executable to launch application:

cd /your_installation prefix/bin
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