W says: Tue, Apr 23, 2024
Javascript gets installed in /usr/share/javascript. You can find that out by asking dpkg: dpkg -S openlayers (or reading debian wiki for javascript packaging)
If you use npm it just puts packages 'here' (i.e. in a node_packages dir in the current directory). I've been avoiding that so far. 
openlayers wasn't in the old prospecting map - that was just JPEGs. It was in the slippy map I never really got working properly. It's also in martin's map-app.
But they were just examples of javascript packages. 

adduser expo
apt install openssh-server mosh tmux mc zile emacs-nox mc most ncdu
apt install python-django apache2 mysql-server survex make rsync 
apt install libjs-openlayers make 
apt install git mercurial mercurial-server?

for boe:
apt install libcgi-session-perl libcrypt-passwdmd5-perl libfile-slurp-perl libgit-wrapper-perl libhtml-template-perl libhtml-template-pro-perl libmime-lite-perl libtext-password-pronounceable-perl libtime-parsedate-perl libuuid-tiny-perl libcrypt-cracklib-perl

apt install ufraw for PEF image decoding.
sudo apt install python-django python-django-registration e fonts-freefont-ttf libapache2-mod-wsgi python3-gdbm
# sudo apt install python-django-imagekit python-django-tinymc

obsolete-packages: bins (move to jigl?)
  older python-django?
backports: survex therion
not-packaged: caveview


make these dirs available at top documentroot:
cuccfiles
expofiles
loser
tunneldata
troggle
expoweb
boc/boe

config
containing:

setup apache configs for cucc and expo
#disable default website
a2dissite 000-default
a2ensite cucc
a2ensite expo
a2enmod cgid


Boe config:
Alias /boe /home/expo/boe/boc/boc.pl
<Directory /home/expo/boe/boc>
        AddHandler cgi-script .pl
        SetHandler cgi-script
        Options +ExecCGI
        Require all granted
</Directory>
And remember to set both program and data dir to be
www-data:www-data
(optionally make file group read/write by treasurer account)
create empty repo by clicking create in boe interface
then set names in 'settings'

Set up mysql (as root)
mysql -p
CREATE DATABASE troggle;
GRANT ALL PRIVILEGES ON troggle.* TO 'expo'@'localhost' IDENTIFIED BY 'somepassword';  
Ctrl-D to exit

somepassword is set in localsettings.py
sudo service mariadb stop
sudo service mariadb start

to delete the database, it is 
DROP DATABASE troggle;

install django:
sudo apt install python-django python-django-registration python-django-imagekit python-django-tinymce fonts-freefont-ttf libapache2-mod-wsgi

python-django-imagekit comes from https://salsa.debian.org/python-team/modules/python-django-imagekit
python-django-tinymce comes from https://salsa.debian.org/python-team/modules/python-django-tinymce

need fonts-freefont-ttf (to have truetype freesans available for troggle via PIL)
need libapache2-mod-wsgi for apache wsgi support.

On stretch the django 1.10 is no use so get rid of that:
apt remove python3-django python-django python-django-common python-django-doc

Then replace with django 1.7 (Needs to be built for stretch)
apt install python-django python-django-common python-django-doc
apt install python-django-registration python-django-imagekit python-django-tinymce

then hold them to stop them being upgraded by unattended upgrades:
echo "python-django hold" | sudo dpkg --set-selections
echo "python-django-common hold" | sudo dpkg --set-selections
echo "python-django-doc hold" | sudo dpkg --set-selections

Optimizing server
I've tweaked the apache and mysql settings to make them a bit more suitable for a small machine. Seems to have shaved 200MB or so off the idling footprint.
https://www.narga.net/optimizing-apachephpmysql-low-memory-server/

(just discovered 'ab' for running apache performance tests - handy).

Do the edit to site-packages/django/db/backends/base.py 
to comment out the requirement for mysqlclient >1.3.13 
as we run perfectly happily with Django 2.2.19 & mysqlite 1.3.10
:

version = Database.version_info
#test nobbled by Wookey 2021-04-08 as 1.3.13 is not available on stable
#if version < (1, 3, 13):
#    raise ImproperlyConfigured('mysqlclient 1.3.13 or newer is required; you have %s.' % Database.__version__)