+Package versions
+----------------
+
+### see available
+
+ apt policy dotnet-sdk-3.1 # (since Buster)
+ apt-cache policy dotnet-sdk-3.1
+
+### install specific
+
+ apt install dotnet-sdk-3.1=3.1.100-1
+
+
Multiarch
---------
https://wiki.debian.org/Multiarch/HOWTO
+### add
dpkg --add-architecture i386
apt update
apt install $PKG_NAME:i386
+### remove
+ apt remove $(dpkg --get-selections | awk '/i386/ {print $1}' | xargs)
+ dpkg --remove-architecture i386
+ apt update
+
Backports
---------