Index: lang/dotnet/Makefile
===================================================================
--- lang/dotnet/Makefile
+++ lang/dotnet/Makefile
@@ -60,6 +60,13 @@
 				SDKVERSION=${SDKVERSION} SDKVERSIONSUFFIX=${SDKVERSIONSUFFIX} \
 				DOTNET_NETVERSION=net${DOTNETVERSION}
 
+OPTIONS_DEFINE=		NUPKG
+OPTIONS_DEFAULT=	NUPKG
+OPTIONS_SUB=		yes
+NUPKG_DESC=		Install FreeBSD runtime NuGet packages
+NUPKG_SUB_FILES=	post-install-register-nuget
+NUPKG_VARS=		PKGPOSTINSTALL+=${WRKDIR}/post-install-register-nuget
+
 .include <bsd.port.pre.mk>
 
 .if ${OSVERSION} >= 1400000
@@ -109,6 +116,10 @@
 
 	${RLN} ${STAGEDIR}${PREFIX}/dotnet/dotnet ${STAGEDIR}${PREFIX}/bin/dotnet
 
+post-install-NUPKG-on:
+	${MKDIR} ${STAGEDIR}${PREFIX}/dotnet/packages
+	${INSTALL_DATA} ${WRKSRC}/artifacts/obj/${DOTNET_ARCH}/Release/blob-feed/packages/*freebsd-${DOTNET_ARCH}*.nupkg ${STAGEDIR}${PREFIX}/dotnet/packages
+
 bootstrap-makesum:
 	@cd ${WRKSRC}/artifacts/${DOTNET_ARCH}/Release && sha256 ${SOURCEBUILT_ARTIFACTS_DISTNAME}${EXTRACT_SUFX}
 	@${ECHO_CMD} -n "SIZE (${SOURCEBUILT_ARTIFACTS_DISTNAME}${EXTRACT_SUFX}) = "
Index: lang/dotnet/files/post-install-register-nuget.in
===================================================================
--- /dev/null
+++ lang/dotnet/files/post-install-register-nuget.in
@@ -0,0 +1,14 @@
+ETCFILE=/etc/opt/NuGet/Config/NuGetDefaults.Config
+if [ -f ${ETCFILE} ]; then
+	echo ${ETCFILE} exists, skipping.
+else
+	echo Registering local NuGet repo in ${ETCFILE}
+	mkdir -p $(dirname ${ETCFILE}) || exit 1;
+	echo >${ETCFILE} "\
+<?xml version=\"1.0\" encoding=\"utf-8\"?>
+<configuration>
+  <packageSources>
+    <add key=\"FreeBSD runtime\" value=\"%%PREFIX%%/dotnet/packages\" />
+  </packageSources>
+</configuration>"
+fi
Index: lang/dotnet/pkg-plist
===================================================================
--- lang/dotnet/pkg-plist
+++ lang/dotnet/pkg-plist
@@ -4,6 +4,18 @@
 dotnet/dotnet
 dotnet/host/fxr/%%FULL_DOTNETVERSION%%/libhostfxr.so
 dotnet/metadata/workloads/%%SDKVERSION%%/userlocal
+%%NUPKG%%dotnet/packages/Microsoft.AspNetCore.App.Runtime.freebsd-x64.8.0.0.nupkg
+%%NUPKG%%dotnet/packages/Microsoft.NETCore.App.Crossgen2.freebsd-x64.8.0.0.nupkg
+%%NUPKG%%dotnet/packages/Microsoft.NETCore.App.Host.freebsd-x64.8.0.0.nupkg
+%%NUPKG%%dotnet/packages/Microsoft.NETCore.App.Runtime.freebsd-x64.8.0.0.nupkg
+%%NUPKG%%dotnet/packages/runtime.freebsd-x64.Microsoft.DotNet.ILCompiler.8.0.0.nupkg
+%%NUPKG%%dotnet/packages/runtime.freebsd-x64.Microsoft.NETCore.DotNetAppHost.8.0.0.nupkg
+%%NUPKG%%dotnet/packages/runtime.freebsd-x64.Microsoft.NETCore.DotNetHost.8.0.0.nupkg
+%%NUPKG%%dotnet/packages/runtime.freebsd-x64.Microsoft.NETCore.DotNetHostPolicy.8.0.0.nupkg
+%%NUPKG%%dotnet/packages/runtime.freebsd-x64.Microsoft.NETCore.DotNetHostResolver.8.0.0.nupkg
+%%NUPKG%%dotnet/packages/runtime.freebsd-x64.Microsoft.NETCore.ILAsm.8.0.0.nupkg
+%%NUPKG%%dotnet/packages/runtime.freebsd-x64.Microsoft.NETCore.ILDAsm.8.0.0.nupkg
+%%NUPKG%%dotnet/packages/runtime.freebsd-x64.Microsoft.NETCore.TestHost.8.0.0-rtm.23531.3.nupkg
 dotnet/packs/Microsoft.AspNetCore.App.Ref/%%FULL_DOTNETVERSION%%/analyzers/dotnet/cs/Microsoft.AspNetCore.App.Analyzers.dll
 dotnet/packs/Microsoft.AspNetCore.App.Ref/%%FULL_DOTNETVERSION%%/analyzers/dotnet/cs/Microsoft.AspNetCore.App.CodeFixes.dll
 dotnet/packs/Microsoft.AspNetCore.App.Ref/%%FULL_DOTNETVERSION%%/analyzers/dotnet/cs/Microsoft.AspNetCore.Components.Analyzers.dll