diff --git a/povray_existing/notes.txt b/povray_existing/notes.txt
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+POV-Ray 3.7.0.8.unofficial
+
+This is an unofficial version compiled by:
+ Docker
+ jmaxwilson/povray:3.7-stable
+ https://cloud.docker.com/repository/docker/jmaxwilson/povray
+ The POV-Ray Team is not responsible for supporting this version.
+
+Copyright 1991-2013 Persistence of Vision Raytracer Pty. Ltd.
+This is free software; see the source for copying conditions.  There is NO
+warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+Built-in features:
+  I/O restrictions:          enabled
+  X Window display:          enabled (using SDL)
+  Supported image formats:   gif tga iff ppm pgm hdr png jpeg tiff openexr
+  Unsupported image formats: -
+
+Compilation settings:
+  Build architecture:  x86_64-pc-linux-musl
+  Built/Optimized for: x86_64-pc-linux-musl (using -march=native)
+  Compiler vendor:     gnu
+  Compiler version:    g++ 8.3.0
+  Compiler flags:      -pipe -Wno-multichar -Wno-write-strings -fno-enforce-eh-specs -Wno-non-template-friend -s -O3 -ffast-math -march=native
+
+___________________________________________________________
+
+  Linux version 5.4.0-84-generic (buildd@lgw01-amd64-050) (gcc version 9.3.0 (Ubuntu 9.3.0-17ubuntu1~20.04)) #94-Ubuntu SMP Thu Aug 26 20:27:37 UTC 2021
+
+___________________________________________________________
+
+Alpine 3.9.3
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