First check in after re-naming snap to sl. This involved a lot of variable renaming and there are likely a number of other little hacks and tweaks.

ROOT/etc/sl.d/templates/container/packages

@@ -0,0 +1,57 @@
+#
+# These packages are the bare minimum necessary for a functional system.
+# This file is required for snapinstall to function, so don't delete it!
+#
+
+snap-base
+dash
+texinfo
+glibc
+coreutils
+libacl
+libattr
+libcap
+ncurses
+readline
+tzdata
+perl
+binutils
+bzip2
+cpio
+dhclient
+e2fsprogs
+ex
+findutils
+gawk
+gdbm
+gmp
+grep
+groff
+gzip
+iana-etc
+iftools
+inetutils
+iproute2
+kmod
+less
+libgcc
+libpipeline
+libstdc++
+libzfs
+linux-firmware
+man-db
+mpfr
+net-tools
+procps-ng
+psmisc
+sed
+shadow
+tar
+snap
+initscripts
+sysklogd
+sysvinit
+tar
+util-linux
+xz
+zlib