diff --git a/.gitignore b/.gitignore
index 1094cd5..d9dd183 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 /libadwaita-1.0.0-alpha.1.tar.gz
 /libadwaita-1.0.0-alpha.2.tar.gz
 /libadwaita-1.0.0.alpha.3.tar.gz
+/libadwaita-1.0.0.alpha.4.tar.gz
diff --git a/libadwaita.spec b/libadwaita.spec
index bcd73dc..f60b6ee 100644
--- a/libadwaita.spec
+++ b/libadwaita.spec
@@ -1,19 +1,21 @@
 %global apiver  1
-%global versuf  alpha.3
+%global versuf  alpha.4
 
 Name:           libadwaita
 Version:        1.0.0
-Release:        0.5.%{versuf}%{?dist}
+Release:        0.6.%{versuf}%{?dist}
 Summary:        Building blocks for modern GNOME applications
 
 License:        LGPLv2+
 URL:            https://gitlab.gnome.org/GNOME/libadwaita
 Source0:        %{url}/-/archive/%{version}.%{versuf}/libadwaita-%{version}.%{versuf}.tar.gz
 
+BuildRequires:  desktop-file-utils
 BuildRequires:  gcc
 BuildRequires:  gi-docgen
 BuildRequires:  intltool
-BuildRequires:  meson >= 0.53.0
+BuildRequires:  libappstream-glib
+BuildRequires:  meson >= 0.59.0
 BuildRequires:  sassc
 BuildRequires:  vala
 
@@ -29,6 +31,7 @@ Summary:        Development files for %{name}
 
 Requires:       %{name}%{?_isa} = %{version}-%{release}
 Requires:       vala
+Recommends:     %{name}-demo = %{version}-%{release}
 Recommends:     %{name}-doc = %{version}-%{release}
 
 %description    devel
@@ -45,6 +48,17 @@ Recommends:     %{name}-devel = %{version}-%{release}
 Documentation files for %{name}.
 
 
+%package        demo
+Summary:        Demo files for %{name}
+BuildArch:      noarch
+
+Requires:       %{name} = %{version}-%{release}
+Suggests:       %{name}-devel = %{version}-%{release}
+
+%description    demo
+Demo files for %{name}.
+
+
 %prep
 %autosetup -n %{name}-%{version}.%{versuf} -p1
 
@@ -61,13 +75,17 @@ Documentation files for %{name}.
 %find_lang %{name}
 
 
+%check
+appstream-util validate-relax --nonet %{buildroot}%{_metainfodir}/*.xml
+desktop-file-validate %{buildroot}%{_datadir}/applications/*.desktop
+
+
 %files -f %{name}.lang
 %license COPYING
 %doc README.md AUTHORS NEWS
 %{_bindir}/adwaita-%{apiver}-demo
 %{_libdir}/*-%{apiver}.so.0*
 %{_libdir}/girepository-1.0/*.typelib
-%{_libdir}/gtk-4.0/inspector/*%{apiver}.so.0*
 
 %files devel
 %dir %{_datadir}/gir-1.0
@@ -82,8 +100,17 @@ Documentation files for %{name}.
 %doc HACKING.md
 %{_docdir}/%{name}-%{apiver}/
 
+%files demo
+%{_datadir}/applications/*.desktop
+%{_datadir}/icons/hicolor/*/apps/*.svg
+%{_metainfodir}/*.metainfo.xml
+
 
 %changelog
+* Tue Nov 02 2021 Artem Polishchuk <ego.cordatus@gmail.com> - 1.0.0-0.6.alpha.4
+- chore(update): 1.0.0-0.6.alpha.4
+- build: Add Demo subpackage
+
 * Fri Oct 01 2021 Artem Polishchuk <ego.cordatus@gmail.com> - 1.0.0-0.5.alpha.3
 - chore(update): 1.0.0-0.5.alpha.3
 
diff --git a/sources b/sources
index 4046ec5..eb0604e 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (libadwaita-1.0.0.alpha.3.tar.gz) = 89dfecf1a554626f9b42933859cd7996714bb590c74469360448b462fe3c1a93d175e5aa8ea42b749d1557dac4683ef4c56e912f1dea97bd94caff97e93fd9ca
+SHA512 (libadwaita-1.0.0.alpha.4.tar.gz) = 9beb3113c3858a32e294bfce00fd9e58559e37446ffcd9950c03a91921ade1545fb30fab85a52b29e449176cd1e94e5d269a390884b4914ecf2f94b5b98e83d1