diff --git a/.env b/.env
index c4978f87..ca0310d2 100644
--- a/.env
+++ b/.env
@@ -1 +1 @@
-DATABASE_URL=postgres://plume:plume@localhost/plume
+DB_URL=postgres://plume:plume@localhost/plume
diff --git a/Cargo.lock b/Cargo.lock
index 49f848cf..5d642fe9 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -808,6 +808,7 @@ dependencies = [
  "dotenv 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "heck 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "hex 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "openssl 0.10.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "reqwest 0.8.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "rocket 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
diff --git a/Cargo.toml b/Cargo.toml
index 44acbf12..f1ae7acc 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -8,6 +8,7 @@ bcrypt = "0.2"
 dotenv = "*"
 heck = "0.3.0"
 hex = "0.3"
+lazy_static = "*"
 openssl = "0.10.6"
 reqwest = "0.8"
 rocket = "*"
diff --git a/migrations/2018-05-02-113930_drop_instance_local_domain/down.sql b/migrations/2018-05-02-113930_drop_instance_local_domain/down.sql
new file mode 100644
index 00000000..fb0ef2e7
--- /dev/null
+++ b/migrations/2018-05-02-113930_drop_instance_local_domain/down.sql
@@ -0,0 +1,2 @@
+-- This file should undo anything in `up.sql`
+ALTER TABLE instances ADD COLUMN local_domain VARCHAR NOT NULL;
diff --git a/migrations/2018-05-02-113930_drop_instance_local_domain/up.sql b/migrations/2018-05-02-113930_drop_instance_local_domain/up.sql
new file mode 100644
index 00000000..2d78cffa
--- /dev/null
+++ b/migrations/2018-05-02-113930_drop_instance_local_domain/up.sql
@@ -0,0 +1,2 @@
+-- Your SQL goes here
+ALTER TABLE instances DROP COLUMN local_domain;
diff --git a/src/activity_pub/inbox.rs b/src/activity_pub/inbox.rs
index 739ae69e..fd125be5 100644
--- a/src/activity_pub/inbox.rs
+++ b/src/activity_pub/inbox.rs
@@ -1,5 +1,4 @@
 use diesel::PgConnection;
-use diesel::associations::Identifiable;
 use serde_json;
 
 use activity_pub::activity::Activity;
diff --git a/src/main.rs b/src/main.rs
index 465ce315..7dbf19cd 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -9,6 +9,8 @@ extern crate hex;
 #[macro_use]
 extern crate diesel;
 extern crate dotenv;
+#[macro_use]
+extern crate lazy_static;
 extern crate openssl;
 extern crate reqwest;
 extern crate rocket;
@@ -33,15 +35,22 @@ mod schema;
 mod routes;
 mod utils;
 
+lazy_static! {
+    pub static ref BASE_URL: String = env::var("BASE_URL")
+        .unwrap_or(format!("127.0.0.1:{}", env::var("ROCKET_PORT").unwrap_or(String::from("8000"))));
+    
+    pub static ref DB_URL: String = env::var("DB_URL")
+        .unwrap_or(format!("DATABASE_URL=postgres://plume:plume@localhost/{}", env::var("DB_TABLE").unwrap_or(String::from("plume"))));
+}
+
 type PgPool = Pool<ConnectionManager<PgConnection>>;
 
 /// Initializes a database pool.
 fn init_pool() -> PgPool {
     dotenv().ok();
 
-    let database_url = env::var("DATABASE_URL").expect("DATABASE_URL must be set");
-    let manager = ConnectionManager::<PgConnection>::new(database_url);
-    Pool::new(manager).expect("db pool")
+    let manager = ConnectionManager::<PgConnection>::new(DB_URL.as_str());
+    Pool::new(manager).expect("DB pool error")
 }
 
 fn main() {
diff --git a/src/models/instance.rs b/src/models/instance.rs
index 6eefb78b..1ccc0579 100644
--- a/src/models/instance.rs
+++ b/src/models/instance.rs
@@ -8,7 +8,6 @@ use schema::{instances, users};
 #[derive(Identifiable, Queryable)]
 pub struct Instance {
     pub id: i32,
-    pub local_domain: String,
     pub public_domain: String,
     pub name: String,
     pub local: bool,
@@ -19,7 +18,6 @@ pub struct Instance {
 #[derive(Insertable)]
 #[table_name = "instances"]
 pub struct NewInstance {
-    pub local_domain: String,
     pub public_domain: String,
     pub name: String,
     pub local: bool
@@ -44,10 +42,9 @@ impl Instance {
         Instance::get_local(conn).unwrap().id
     }
 
-    pub fn insert<'a>(conn: &PgConnection, loc_dom: String, pub_dom: String, name: String, local: bool) -> Instance {
+    pub fn insert<'a>(conn: &PgConnection, pub_dom: String, name: String, local: bool) -> Instance {
         diesel::insert_into(instances::table)
             .values(NewInstance {
-                local_domain: loc_dom,
                 public_domain: pub_dom,
                 name: name,
                 local: local
diff --git a/src/models/users.rs b/src/models/users.rs
index 5a4d40a2..9bfcf7da 100644
--- a/src/models/users.rs
+++ b/src/models/users.rs
@@ -10,6 +10,7 @@ use rocket::outcome::IntoOutcome;
 use serde_json;
 use url::Url;
 
+use BASE_URL;
 use activity_pub::activity::Activity;
 use activity_pub::actor::{ActorType, Actor};
 use activity_pub::inbox::Inbox;
@@ -138,7 +139,7 @@ impl User {
         let instance = match Instance::get_by_domain(conn, inst.clone()) {
             Some(instance) => instance,
             None => {
-                Instance::insert(conn, String::from(""), inst.clone(), inst.clone(), false)
+                Instance::insert(conn, inst.clone(), inst.clone(), false)
             }
         };
         User::insert(conn, NewUser {
@@ -249,7 +250,7 @@ impl Actor for User {
             None => {
                 // The requested user was not in the DB
                 // We try to fetch it if it is remote
-                if Url::parse(url.as_ref()).unwrap().host_str().unwrap() != Instance::get_local(conn).unwrap().public_domain {
+                if Url::parse(url.as_ref()).unwrap().host_str().unwrap() != BASE_URL.as_str() {
                     Some(User::fetch_from_url(conn, url).unwrap())
                 } else {
                     None
diff --git a/src/routes/blogs.rs b/src/routes/blogs.rs
index 60d20430..ace2597b 100644
--- a/src/routes/blogs.rs
+++ b/src/routes/blogs.rs
@@ -36,7 +36,6 @@ struct NewBlogForm {
 
 #[post("/blogs/new", data = "<data>")]
 fn create(conn: DbConn, data: Form<NewBlogForm>, user: User) -> Redirect {
-    let inst = Instance::get_local(&*conn).unwrap();
     let form = data.get();
     let slug = utils::make_actor_id(form.title.to_string());
 
@@ -44,7 +43,7 @@ fn create(conn: DbConn, data: Form<NewBlogForm>, user: User) -> Redirect {
         slug.to_string(),
         form.title.to_string(),
         String::from(""),
-        inst.id
+        Instance::local_id(&*conn)
     ));
     blog.update_boxes(&*conn);
 
diff --git a/src/routes/instance.rs b/src/routes/instance.rs
index 4a3b8863..1a33d7c1 100644
--- a/src/routes/instance.rs
+++ b/src/routes/instance.rs
@@ -3,6 +3,7 @@ use rocket::response::Redirect;
 use rocket_contrib::Template;
 use std::collections::HashMap;
 
+use BASE_URL;
 use db_conn::DbConn;
 use models::instance::*;
 
@@ -25,8 +26,6 @@ fn configure() -> Template {
 
 #[derive(FromForm)]
 struct NewInstanceForm {
-    local_domain: String,
-    public_domain: String,
     name: String
 }
 
@@ -35,8 +34,7 @@ fn post_config(conn: DbConn, data: Form<NewInstanceForm>) -> Redirect {
     let form = data.get();
     let inst = Instance::insert(
         &*conn,
-        form.local_domain.to_string(),
-        form.public_domain.to_string(), 
+        BASE_URL.as_str().to_string(),
         form.name.to_string(),
         true);
     if inst.has_admin(&*conn) {
diff --git a/src/routes/well_known.rs b/src/routes/well_known.rs
index ba87a44f..c4977478 100644
--- a/src/routes/well_known.rs
+++ b/src/routes/well_known.rs
@@ -1,21 +1,20 @@
 use rocket::http::ContentType;
 use rocket::response::Content;
 
+use BASE_URL;
 use activity_pub::webfinger::Webfinger;
 use db_conn::DbConn;
 use models::blogs::Blog;
-use models::instance::Instance;
 use models::users::User;
 
 #[get("/.well-known/host-meta", format = "application/xml")]
-fn host_meta(conn: DbConn) -> String {
-    let domain = Instance::get_local(&*conn).unwrap().public_domain;
+fn host_meta() -> String {
     format!(r#"
     <?xml version="1.0"?>
     <XRD xmlns="http://docs.oasis-open.org/ns/xri/xrd-1.0">
         <Link rel="lrdd" type="application/xrd+xml" template="https://{domain}/.well-known/webfinger?resource={{uri}}"/>
     </XRD>
-    "#, domain = domain)
+    "#, domain = BASE_URL.as_str())
 }
 
 #[derive(FromForm)]
@@ -34,9 +33,7 @@ fn webfinger(query: WebfingerQuery, conn: DbConn) -> Content<Result<String, &'st
         let user = parsed_res.next().unwrap();
         let res_dom = parsed_res.next().unwrap();
 
-        let domain = Instance::get_local(&*conn).unwrap().public_domain;
-
-        if res_dom == domain {
+        if res_dom == BASE_URL.as_str() {
             let res = match User::find_local(&*conn, String::from(user)) {
                 Some(usr) => Ok(usr.webfinger(&*conn)),
                 None => match Blog::find_by_actor_id(&*conn, String::from(user)) {
diff --git a/src/schema.rs b/src/schema.rs
index 155d97e9..2e696d2c 100644
--- a/src/schema.rs
+++ b/src/schema.rs
@@ -32,7 +32,6 @@ table! {
 table! {
     instances (id) {
         id -> Int4,
-        local_domain -> Varchar,
         public_domain -> Varchar,
         name -> Varchar,
         local -> Bool,
diff --git a/templates/instance/configure.tera b/templates/instance/configure.tera
index 36a6a921..c9332efb 100644
--- a/templates/instance/configure.tera
+++ b/templates/instance/configure.tera
@@ -7,12 +7,6 @@
     <body>
         <h1>Configure your instance</h1>
         <form method="post">
-            <label for="local_domain">Internal domain</label>
-            <input name="local_domain">
-
-            <label for="public_domain">Public domain</label>
-            <input name="public_domain">
-
             <label for="name">Name</label>
             <input name="name">