diff --git a/Cargo.toml b/Cargo.toml
index 78b9594..7c4a5eb 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -31,4 +31,6 @@ itertools = "0.10.5"
 flate2 = "1.0.25"
 csv = "1.1.6"
 fs_extra = "1.3.0"
+lazy_static = "1.4.0"
+config = "0.13.3"
 # spinners = "4.1.0"
diff --git a/config/Default.toml b/config/Default.toml
new file mode 100644
index 0000000..8b8b170
--- /dev/null
+++ b/config/Default.toml
@@ -0,0 +1,27 @@
+
+
+[infer]
+min_domain_occurs = 100
+max_ns = 5
+iri_max_length = 200
+min_ns_size = 1000
+iri_trie_size = 1_000_000
+#     2 MIN_DOMAIN_OCCURS
+#     4 MAX_NS
+#     3 IRI_MAX_LENGTH
+#     8 MIN_NS_SIZE
+#     3 IRI_TRIE_SIZE
+
+
+[community]
+url = "https://raw.githubusercontent.com/linkml/prefixmaps/main/src/prefixmaps/data/merged.csv"
+dir = "cache"
+path = "cache/prefixmap.json"
+#     4 PV_PATH
+#     2 PV_URL
+#     2 PV_DIR
+
+    
+[visulization]
+render_dir = "chilon-viz"
+#     5 RENDER_DIR
diff --git a/src/settings.rs b/src/settings.rs
new file mode 100644
index 0000000..24d0fb6
--- /dev/null
+++ b/src/settings.rs
@@ -0,0 +1,66 @@
+use config::{Config, ConfigError, Environment, File};
+
+#[derive(Debug, Deserialize, Clone)]
+pub struct Infer {
+    pub min_domain_occurs: i32,
+    pub max_ns: i32,
+    pub iri_max_length: i32,
+    pub min_ns_size: i32,
+    pub iri_trie_size: i32,
+}
+
+#[derive(Debug, Deserialize, Clone)]
+pub struct Community {
+    pub url: String,
+    pub dir: String,
+    pub path: String,
+}
+
+#[derive(Debug, Deserialize, Clone)]
+pub struct Visualization {
+    pub render_dir: String,
+}
+
+#[derive(Debug, Deserialize, Clone)]
+pub struct Settings {
+    pub infer: Infer,
+    pub community: Community,
+    pub visualization: Visualization,
+    pub env: ENV,
+}
+
+const CONFIG_FILE_PATH: &str = "./config/Default.toml";
+const CONFIG_FILE_PREFIX: &str = "./config/";
+
+#[derive(Clone, Debug, Deserialize)]
+pub enum ENV {
+    Development,
+    Testing,
+    Production,
+}
+
+impl fmt::Display for ENV {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        match self {
+            ENV::Development => write!(f, "Development"),
+            ENV::Testing => write!(f, "Testing"),
+            ENV::Production => write!(f, "Production"),
+        }
+    }
+}
+
+impl Settings {
+    pub fn new() -> Result<Self, ConfigError> {
+        let env = std::env::var("RUN_ENV").unwrap_or_else(|_| "Development".into());
+        let mut s = Config::new();
+        s.set("env", env.clone())?;
+
+        s.merge(File::with_name(CONFIG_FILE_PATH))?;
+        s.merge(File::with_name(&format!("{}{}", CONFIG_FILE_PREFIX, env)))?;
+
+        // This makes it so "EA_SERVER__PORT overrides server.port
+        s.merge(Environment::with_prefix("ea").separator("__"))?;
+
+        s.try_into()
+    }
+}