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Can anyone help me installing/building Nativescript Sidekick application on nixos ?
it’s a debian package (https://www.nativescript.org/nativescript-sidekick)
I have tried this mkDerivation

with import <nixpkgs> {};
let
  src = ./NativeScriptSidekick__amd64.deb;

in stdenv.mkDerivation {
  name = "NativeScriptSidekick";
  inherit src;

  # Required for compilation
  nativeBuildInputs = [
    autoPatchelfHook # Automatically setup the loader, and do the magic
    dpkg
  ];

  # Required at running time
  buildInputs = [
    stdenv.cc.cc.lib
    pulseaudioFull
    glibc
    xorg.libX11
    xorg.libxcb
    xorg.libXi
    xorg.libXtst
    expat
    libuuid
    xorg.libXrandr
    xorg.libXScrnSaver
    alsaLib
    at-spi2-atk
    at-spi2-core
    cups.lib
    ffmpeg
    nss
    nssTools
    nspr
    gdk_pixbuf
    gnome2.GConf
    libappindicator-gtk2
    gtk3
    pango
    cairo
    libasyncns
    libsndfile
    xorg.libSM
    xorg.libICE
    xorg.libXcomposite
    xorg.libXcursor
    xorg.libXdamage
    nodejs
  ];

  unpackPhase = "true";

  # Extract and copy executable in $out/bin
  installPhase = ''
    mkdir -p $out
    dpkg -x $src $out
    cp -av "$out/opt/NativeScript Sidekick" $out/opt/NativeScriptSidekick/
    rm -rf "$out/opt/NativeScript Sidekick"
  '';
}

but it fails on runtime:

Fontconfig warning: "/etc/fonts/fonts.conf", line 86: unknown element "blank"
Trace/breakpoint trap (core dumped)