diff --git a/.gitignore b/.gitignore
index 183ccfbd..26c17459 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,6 +8,8 @@ tmp/**/*
 /app/assets/builds/*
 !/app/assets/builds/.keep
 
+/public/public-data
+
 /node_modules
 
 .pnp.*
diff --git a/Gemfile b/Gemfile
index fe320aec..4ccff860 100644
--- a/Gemfile
+++ b/Gemfile
@@ -79,6 +79,9 @@ gem "stackprof", "~> 0.2.25"
 gem "sentry-ruby", "~> 5.12"
 gem "sentry-rails", "~> 5.12"
 
+# For tasks that use shell commands.
+gem "shell", "~> 0.8.1"
+
 # For automated testing.
 group :test do
 	gem 'sqlite3', '~> 1.7'
diff --git a/Gemfile.lock b/Gemfile.lock
index 56689f5b..14075c2f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -139,6 +139,7 @@ GEM
       railties (>= 3.2)
     drb (2.2.0)
       ruby2_keywords
+    e2mmap (0.1.0)
     erubi (1.12.0)
     execjs (2.9.1)
     falcon (0.43.0)
@@ -316,6 +317,9 @@ GEM
       sentry-ruby (~> 5.16.1)
     sentry-ruby (5.16.1)
       concurrent-ruby (~> 1.0, >= 1.0.2)
+    shell (0.8.1)
+      e2mmap
+      sync
     sprockets (4.2.1)
       concurrent-ruby (~> 1.0)
       rack (>= 2.2.4, < 4)
@@ -327,6 +331,7 @@ GEM
       mini_portile2 (~> 2.8.0)
     stackprof (0.2.26)
     stringio (3.1.0)
+    sync (0.5.0)
     temple (0.10.3)
     terser (1.2.0)
       execjs (>= 0.3.0, < 3)
@@ -385,6 +390,7 @@ DEPENDENCIES
   sass-rails (~> 6.0)
   sentry-rails (~> 5.12)
   sentry-ruby (~> 5.12)
+  shell (~> 0.8.1)
   sprockets (~> 4.2)
   sqlite3 (~> 1.7)
   stackprof (~> 0.2.25)
diff --git a/config/environments/development.rb b/config/environments/development.rb
index 6eac4c70..dbdfcab7 100644
--- a/config/environments/development.rb
+++ b/config/environments/development.rb
@@ -112,4 +112,8 @@ Rails.application.configure do
   # we keep this in a long-term location instead!)
   config.neopets_media_archive_root = Rails.root / "tmp" /
     "neopets_media_archive" / "development"
+
+  # When developing the `public_data:commit` command, save to the local `tmp`
+  # folder. (In production, we keep this in a long-term location instead!)
+  config.public_data_root = Rails.root / "tmp" / "public_data"
 end
diff --git a/config/environments/production.rb b/config/environments/production.rb
index 20858d10..1a11dbb1 100644
--- a/config/environments/production.rb
+++ b/config/environments/production.rb
@@ -130,4 +130,8 @@ Rails.application.configure do
   # Save the Neopets Media Archive in `/var/lib/neopets-media-archive`, a
   # long-term storage location.
   config.neopets_media_archive_root = "/var/lib/neopets-media-archive"
+
+  # Save our public data exports in `public/public-data`. (This should be
+  # symlinked to a shared folder persisted across all versions.)
+  config.public_data_root = Rails.root / "public" / "public-data"
 end
diff --git a/deploy/deploy.yml b/deploy/deploy.yml
index d6a5dd61..e40a4e5f 100644
--- a/deploy/deploy.yml
+++ b/deploy/deploy.yml
@@ -51,6 +51,12 @@
           - "--exclude=.git"
           - "--filter=':- .gitignore'"
 
+    - name: Link the public-data folder to the shared public-data folder
+      file:
+        src: "{{ remote_project_root }}/shared/public-data"
+        dest: "{{ remote_app_root }}/public/public-data"
+        state: link
+
     - name: Configure Bundler to run in deployment mode
       command:
         chdir: "{{ remote_app_root }}"
diff --git a/deploy/files/sites-available/impress.conf b/deploy/files/sites-available/impress.conf
index 91cbcb0c..3401a70b 100644
--- a/deploy/files/sites-available/impress.conf
+++ b/deploy/files/sites-available/impress.conf
@@ -33,6 +33,10 @@ server {
     add_header  ETag "";
   }
 
+  location /public-data/ {
+    autoindex on;
+  }
+
   # On status 503, return the maintenance page. (We'll trigger this ourselves
   # in the @app location, if $maintenance is on.)
   error_page 503 /maintenance.html;
diff --git a/deploy/setup.yml b/deploy/setup.yml
index 2646fbe9..2c30014f 100644
--- a/deploy/setup.yml
+++ b/deploy/setup.yml
@@ -275,6 +275,13 @@
         - Reload systemctl
         - Restart impress
 
+    - name: Create the shared public-data folder
+      become_user: impress
+      file:
+        dest: /srv/impress/shared/public-data
+        mode: "755"
+        state: directory
+
     - name: Create service file for impress
       copy:
         src: files/impress.service
diff --git a/lib/tasks/public_data.rake b/lib/tasks/public_data.rake
new file mode 100644
index 00000000..d4416dc0
--- /dev/null
+++ b/lib/tasks/public_data.rake
@@ -0,0 +1,67 @@
+require "open3"
+
+desc "Tools to save and import DTI's public modeling data"
+namespace :public_data do
+	desc "Save the local database's public data to a local file"
+	task :commit, [:name] => :environment do |_, args|
+		if Rails.env.development?
+			puts "NOTE: The `public_data:commit` task is primarily meant to be " +
+				"run in production, to create public data files we can copy to our " +
+				"development machines via `public_data:pull`. I'll still run it " +
+				"locally and save to #{Rails.configuration.public_data_root}, though!"
+		end
+
+		config = ApplicationRecord.connection_db_config.configuration_hash
+
+		# Generate a filename from the current time, and the option name argument
+		# provided to the command (e.g. `rails public_data:commit[scheduled]`).
+		timestamp = Time.now.utc.iso8601.gsub(':', '_')
+		name = args.fetch(:name, "manual")
+		filename = "#{timestamp}-#{name}.sql.gz"
+		dest_path = Rails.configuration.public_data_root / filename
+
+		args = []
+
+		# The connection details for our database!
+		args << "--host=#{config[:host]}" if config[:host]
+		args << "--user=#{config[:username]}" if config[:username]
+		args << "--password=#{config[:password]}" if config[:password]
+
+		# Don't lock the database to do it!
+		args << "--single-transaction"
+
+		# Dump the public data tables from the primary database.
+		args << config.fetch(:database)
+		args += %w(species colors zones) # manual constants
+		args += %w(alt_styles items parents_swf_assets pet_states pet_types
+		           swf_assets) # from modeling
+
+		# Set up a shell, and register the commands we need.
+		Shell.def_system_command("mysqldump")
+		Shell.def_system_command("gzip")
+		sh = Shell.new
+
+		# Ensure the output directory exists.
+		dest_path.dirname.mkpath
+
+		# Run mysqldump, pipe it into gzip, and output to the destination file.
+		sh.mysqldump(*args) | sh.gzip("-c") > dest_path.to_s
+		puts "Saved dump to #{dest_path}"
+
+		# Link this latest dump as `latest.sql.gz`.
+		latest_path = Rails.configuration.public_data_root / "latest.sql.gz"
+		File.unlink(latest_path) if File.exist?(latest_path)
+		File.symlink(dest_path, latest_path)
+		puts "Linked dump to #{latest_path}"
+	end
+
+	desc "Pull and import the latest public data from production (dev only)"
+	task :pull do
+		unless Rails.env.development?
+			raise "Can only pull public data in development mode! This helps us " +
+				"ensure we won't overwrite the production database accidentally."
+		end
+
+		raise NotImplementedError, "TODO!"
+	end
+end
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new file mode 100644
index 00000000..c5d26939
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diff --git a/vendor/cache/shell-0.8.1.gem b/vendor/cache/shell-0.8.1.gem
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index 00000000..d7d8bf56
Binary files /dev/null and b/vendor/cache/shell-0.8.1.gem differ
diff --git a/vendor/cache/sync-0.5.0.gem b/vendor/cache/sync-0.5.0.gem
new file mode 100644
index 00000000..1aa977b6
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