diff --git a/.erdconfig b/.erdconfig
new file mode 100644
index 00000000..bc2bb3d5
--- /dev/null
+++ b/.erdconfig
@@ -0,0 +1,7 @@
+exclude: ActiveRecord::InternalMetadata, ActiveRecord::SchemaMigration
+attributes:
+  - content
+  - foreign_key
+  - inheritance
+filename: erd
+filetype: png
diff --git a/Gemfile b/Gemfile
index 3d212634..63308e81 100644
--- a/Gemfile
+++ b/Gemfile
@@ -43,6 +43,7 @@ group :development do
   gem 'spring'
   gem 'spring-watcher-listen', '~> 2.0.0'
   gem 'annotate', '~> 2.7'
+  gem 'rails-erd', '~> 1.5', require: false
 end
 
 group :test do
diff --git a/Gemfile.lock b/Gemfile.lock
index 73f50281..4ad27921 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -71,6 +71,7 @@ GEM
     chartkick (2.3.4)
     childprocess (0.9.0)
       ffi (~> 1.0, >= 1.0.11)
+    choice (0.2.0)
     chromedriver-helper (1.2.0)
       archive-zip (~> 0.10)
       nokogiri (~> 1.8)
@@ -153,6 +154,11 @@ GEM
     rails-dom-testing (2.0.3)
       activesupport (>= 4.2.0)
       nokogiri (>= 1.6)
+    rails-erd (1.5.2)
+      activerecord (>= 3.2)
+      activesupport (>= 3.2)
+      choice (~> 0.2.0)
+      ruby-graphviz (~> 1.2)
     rails-html-sanitizer (1.0.4)
       loofah (~> 2.2, >= 2.2.2)
     railties (5.2.0)
@@ -165,6 +171,7 @@ GEM
     rb-fsevent (0.10.3)
     rb-inotify (0.9.10)
       ffi (>= 0.5.0, < 2)
+    ruby-graphviz (1.2.3)
     ruby_dep (1.5.0)
     rubyzip (1.2.1)
     sass (3.5.6)
@@ -232,6 +239,7 @@ DEPENDENCIES
   pg_search (~> 2.1)
   puma (~> 3.11)
   rails (~> 5.2.0)
+  rails-erd (~> 1.5)
   sass-rails (~> 5.0)
   selenium-webdriver
   spring
diff --git a/README.md b/README.md
index 9e71d764..7d304b80 100644
--- a/README.md
+++ b/README.md
@@ -72,6 +72,10 @@ To view all dependencies used in this project, see the [`Gemfile`](/Gemfile) and
 
 ## Notes
 
+### Architecture
+
+![ERD](erd.png)
+
 ### Resources
 
 - [Using PostgreSQL and jsonb with Ruby on Rails](https://nandovieira.com/using-postgresql-and-jsonb-with-ruby-on-rails) is a really useful article for understanding jsonb usage with Postgres and Rails (this is used in this app). 
diff --git a/erd.png b/erd.png
new file mode 100644
index 00000000..b475bf64
Binary files /dev/null and b/erd.png differ
diff --git a/lib/tasks/auto_generate_diagram.rake b/lib/tasks/auto_generate_diagram.rake
new file mode 100644
index 00000000..1df06962
--- /dev/null
+++ b/lib/tasks/auto_generate_diagram.rake
@@ -0,0 +1,6 @@
+# NOTE: only doing this in development as some production environments (Heroku)
+# NOTE: are sensitive to local FS writes, and besides -- it's just not proper
+# NOTE: to have a dev-mode tool do its thing in production.
+if Rails.env.development?
+  RailsERD.load_tasks
+end