Latest stories

PostGIS Basics - Part 2 - Hello World

SELECT AddGeometryColumn('public', 'table','column', 4269, 'POINT', 2) This will add a new column to the table and add an entry to the metadata table (the 4269 specifies my reference system, more on that below). It will also add a column to "table" and s...

PostGIS Basics - Part 1 - Installation

My OS is CentOS, so I used yum to handle installs from the rpm database. The thing with CentOS is that it is purposefully one step behind the cutting edge, so the most recent version of certain applications are not available (PHP, Postgres, etc). To get around this limitation, you have to instr...

Cryptocurrency 101

This is a document for combining my cryptocurrency introduction conversations together with questions that I answer on a regular basis. It is to be considered a rough draft.  I work on it when I have time, which is not often. Latest version: ...

Get in touch

You can reach Jeremy at [email protected]