added basic info...

Signed-off-by: Alex A. Naanou <alex.nanou@gmail.com>

README.md

@@ -0,0 +1,18 @@
+
+## Two stage update
+
+The configuration is split into two parts to allow for two stage updates to conserve space
+on storage-limited systems.
+
+To run a two stage update do:
+```shell
+  $ sudo NIX_LIGHTWEIGHT=1 nixos-rebbuild switch
+  $ reboot
+```
+then:
+```shell
+  $ sudo nix-collect-garbage --delete-old
+  $ sudo nixos-rebbuild switch
+```
+
+

configuration.nix

@@ -421,6 +421,7 @@
         ffmpeg #ffmpegthumbnailer
         httrack
 
+        exiftool vips
       ];
 
       programs.geary.enable = false;
@@ -491,21 +492,28 @@
           kvoptions xargs ifthenx iftex xint listofitems xkeyval
           etoolbox changepage pdfcomment eso-pic environ numprint xcolor
           pagecolor colorspace graphics adjustbox textpos fancyvrb flowfram
-          fancyhdr pdfpages geometry 
+          fancyhdr pdfpages geometry varwidth hyphenat bigfoot lipsum 
-          anyfontsize cprotect ccicons 
+          anyfontsize cprotect ccicons multitoc hardwrap catchfile 
-          # XXX this seems to be missing...
-          #suffix 
-          lipsum 
-          hardwrap catchfile 
-          # photobook...
-          photobook
-          # doc...
           titlesec hypdoc doctools needspace xstring listings imakeidx  
           latexmk;
+          pax
+
+          # fonts...
+          opensans courier
+
+          # languages...
+          russ babel-russian hyphen-russian
+          
+          # photobook...
+          photobook
+          
           #(setq org-latex-compiler "lualatex")
           #(setq org-preview-latex-default-process 'dvisvgm)
         })
 
+        # jdk - required by texlive-pax (BUG: no dependency??)
+        temurin-jre-bin
+
         # fonts...
         #nerdfonts