diff --git a/.arcconfig b/.arcconfig
new file mode 100644
index 0000000..3483e37
--- /dev/null
+++ b/.arcconfig
@@ -0,0 +1,6 @@
+{
+    "load": [
+        "src/",
+        "/home/avivey/devtools/phabricator/src/"
+    ]
+}
diff --git a/.arclint b/.arclint
new file mode 100644
index 0000000..7fb4c0f
--- /dev/null
+++ b/.arclint
@@ -0,0 +1,87 @@
+{
+  "exclude": [
+    "(^externals/)",
+    "(^webroot/rsrc/externals/(?!javelin/))",
+    "(/__tests__/data/)",
+    "(^support/aphlict/server/package-lock.json)"
+  ],
+  "linters": {
+    "chmod": {
+      "type": "chmod"
+    },
+    "filename": {
+      "type": "filename"
+    },
+    "generated": {
+      "type": "generated"
+    },
+    "javelin": {
+      "type": "javelin",
+      "include": "(\\.js$)",
+      "exclude": [
+        "(^support/aphlict/)"
+      ]
+    },
+    "jshint-browser": {
+      "type": "jshint",
+      "include": "(\\.js$)",
+      "exclude": [
+        "(^support/aphlict/server/.*\\.js$)",
+        "(^webroot/rsrc/externals/javelin/core/init_node\\.js$)"
+      ],
+      "jshint.jshintrc": "support/lint/browser.jshintrc"
+    },
+    "jshint-node": {
+      "type": "jshint",
+      "include": [
+        "(^support/aphlict/server/.*\\.js$)",
+        "(^webroot/rsrc/externals/javelin/core/init_node\\.js$)"
+      ],
+      "jshint.jshintrc": "support/lint/node.jshintrc"
+    },
+    "json": {
+      "type": "json",
+      "include": [
+        "(^src/docs/book/.*\\.book$)",
+        "(^support/lint/jshintrc$)",
+        "(^\\.arcconfig$)",
+        "(^\\.arclint$)",
+        "(\\.json$)"
+      ]
+    },
+    "merge-conflict": {
+      "type": "merge-conflict"
+    },
+    "nolint": {
+      "type": "nolint"
+    },
+    "phutil-library": {
+      "type": "phutil-library",
+      "include": "(\\.php$)"
+    },
+    "spelling": {
+      "type": "spelling"
+    },
+    "text": {
+      "type": "text",
+      "exclude": [
+        "(^src/(.*/)?__tests__/[^/]+/.*\\.(txt|json|expect))"
+      ]
+    },
+    "text-without-length": {
+      "type": "text",
+      "include": [
+        "(^src/(.*/)?__tests__/[^/]+/.*\\.(txt|json|expect))"
+      ],
+      "severity": {
+        "3": "disabled"
+      }
+    },
+    "xhpast": {
+      "type": "xhpast",
+      "include": "(\\.php$)",
+      "standard": "phutil.xhpast",
+      "xhpast.php-version": "5.5"
+    }
+  }
+}
diff --git a/.arcunit b/.arcunit
new file mode 100644
index 0000000..f5b2c47
--- /dev/null
+++ b/.arcunit
@@ -0,0 +1,8 @@
+{
+    "engines": {
+        "phutil": {
+            "type": "phutil",
+            "include": "(\\.php$)"
+        }
+    }
+}
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..5c99835
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,5 @@
+# NOTE: Thinking about adding files created by your operating system, IDE,
+# or text editor here? Don't! Add them to your per-user .gitignore instead.
+
+
+/src/.phutil_module_cache
diff --git a/src/__phutil_library_init__.php b/src/__phutil_library_init__.php
new file mode 100644
index 0000000..7627019
--- /dev/null
+++ b/src/__phutil_library_init__.php
@@ -0,0 +1,3 @@
+<?php
+
+phutil_register_library('semi-structured', __FILE__);
diff --git a/src/__phutil_library_map__.php b/src/__phutil_library_map__.php
new file mode 100644
index 0000000..cb669a2
--- /dev/null
+++ b/src/__phutil_library_map__.php
@@ -0,0 +1,18 @@
+<?php
+
+/**
+ * This file is automatically generated. Use 'arc liberate' to rebuild it.
+ *
+ * @generated
+ * @phutil-library-version 2
+ */
+phutil_register_library_map(array(
+  '__library_version__' => 2,
+  'class' => array(
+    'SemiStructuredDataApplication' => 'applications/semistruct/application/SemiStructuredDataApplication.php',
+  ),
+  'function' => array(),
+  'xmap' => array(
+    'SemiStructuredDataApplication' => 'PhabricatorApplication',
+  ),
+));
diff --git a/src/application/SemiStructuredDataApplication.php b/src/application/SemiStructuredDataApplication.php
new file mode 100644
index 0000000..8e14cbf
--- /dev/null
+++ b/src/application/SemiStructuredDataApplication.php
@@ -0,0 +1,23 @@
+<?php
+
+final class SemiStructuredDataApplication extends PhabricatorApplication {
+  public function getName() {
+    return 'Semi-Structured';
+  }
+
+  public function getShortDescription() {
+    return "TBD";
+  }
+
+  public function getBaseURI() {
+    return '/semistruct/';
+  }
+
+  public function getRoutes() {
+    return array(
+        '/semistruct/' => array(
+      ),
+    );
+  }
+
+}