add Nix support

Author: korewaChino

base/Containerfile

@@ -109,9 +109,12 @@ RUN ln -sf /var/opt /opt && \
     ln -sf /var/srv /srv && \
     ln -sf /var/afs /afs && \
     ln -sf /var/media /media
+
+# Add Nix support
+RUN mkdir -p /var/nix && ln -srf /var/nix /nix && chmod 1777 /var/nix
 
 # Tmpfiles configuration
-RUN echo "$(for dir in opt usrlocal home srv mnt ; do echo "d /var/$dir 0755 root root -" ; done)" | tee -a /usr/lib/tmpfiles.d/bootc-base-dirs.conf && \
+RUN echo "$(for dir in opt usrlocal home srv mnt nix ; do echo "d /var/$dir 0755 root root -" ; done)" | tee -a /usr/lib/tmpfiles.d/bootc-base-dirs.conf && \
     echo "d /var/roothome 0700 root root -" | tee -a /usr/lib/tmpfiles.d/bootc-base-dirs.conf && \
     echo "d /run/media 0755 root root -" | tee -a /usr/lib/tmpfiles.d/bootc-base-dirs.conf