diff --git a/II/Referatas/mj-referatas.tex b/II/Referatas/mj-referatas.tex
index 43feea3..665dc35 100644
--- a/II/Referatas/mj-referatas.tex
+++ b/II/Referatas/mj-referatas.tex
@@ -408,6 +408,9 @@ The input files outside of these listings are {\tt zeimena.gpkg}, which is a
 manually created GeoPackage containing Žeimena and Lakaja rivers, and the
 \LaTeX\ report itself.
 
+The analysis was executed and report was generated on Ubuntu 20.04 with only
+system packages.
+
 \subsection{douglas.sql}
 Transforms a layer ({\tt :src}) to {\DP} using $tolerance$ tolerance.
 \inputminted[fontsize=\small]{sql}{douglas.sql}
@@ -434,5 +437,11 @@ This file binds all the pieces together:
 This file accepts a layer (or two) and generates a PDF image suitable for embedding into the report.
 \inputminted[fontsize=\small]{python}{layer2img.py}
 
+\subsection{managedb}
+Manages a PostGIS database in the project directory. That way, the database can
+be torn down and re-created by automated tools like the {\tt Makefile} itself.
+You may need to update the paths in this script to suit your environment.
+\inputminted[fontsize=\small]{bash}{managedb}
+
 \end{appendices}
 \end{document}