diff --git a/.github/workflows/bats.yml b/.github/workflows/bats.yml
new file mode 100644
index 00000000..7378d41f
--- /dev/null
+++ b/.github/workflows/bats.yml
@@ -0,0 +1,19 @@
+name: "E2E Tests"
+
+on:
+  pull_request:
+    branches: [main]
+
+jobs:
+  integration:
+    name: End to End Test
+    runs-on: ubuntu-latest
+    steps:
+      - name: Install Nix
+        uses: DeterminateSystems/nix-installer-action@v4
+      - name: Run the Magic Nix Cache
+        uses: DeterminateSystems/magic-nix-cache-action@v2
+      - uses: actions/checkout@v3
+      - name: Run e2e tests
+        run: nix develop -c make e2e
+
diff --git a/.gitignore b/.gitignore
index d7da8ffd..b8ece28e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -14,3 +14,7 @@ Cargo.lock
 *.pdb
 
 .direnv/
+
+-
+.e2e-logs
+.cala
diff --git a/Makefile b/Makefile
index 0bdf14ec..021c3393 100644
--- a/Makefile
+++ b/Makefile
@@ -30,5 +30,11 @@ check-code: sdl
 	SQLX_OFFLINE=true cargo clippy --all-features
 	SQLX_OFFLINE=true cargo audit
 
+build:
+	SQLX_OFFLINE=true cargo build --locked
+
+e2e: clean-deps start-deps build
+	bats -t bats
+
 sdl:
 	SQLX_OFFLINE=true cargo run --bin write_sdl > cala-server/schema.graphql
diff --git a/bats/examples.bats b/bats/examples.bats
new file mode 100644
index 00000000..e5df3dda
--- /dev/null
+++ b/bats/examples.bats
@@ -0,0 +1,33 @@
+#!/usr/bin/env bats
+
+load "helpers"
+
+setup_file() {
+  reset_pg
+  start_server
+}
+
+teardown_file() {
+  stop_server
+}
+
+
+@test "rust: entities sync to server" {
+  variables=$(
+    jq -n \
+    '{
+      input: {
+        name: "rust-example",
+        endpoint: "http://localhost:2253"
+      }
+    }'
+  )
+
+  exec_graphql 'import-job-create' "$variables"
+
+  name=$(graphql_output '.data.importJobCreate.importJob.name')
+  [[ "$name" == "rust-example" ]] || exit 1;
+
+
+  cargo run --bin cala-ledger-example-rust
+}
diff --git a/bats/gql/import-job-create.gql b/bats/gql/import-job-create.gql
new file mode 100644
index 00000000..17930849
--- /dev/null
+++ b/bats/gql/import-job-create.gql
@@ -0,0 +1,9 @@
+mutation importJobCreate($input: ImportJobCreateInput!) {
+  importJobCreate(input: $input) {
+    importJob {
+      importJobId
+      name
+    }
+  }
+}
+
diff --git a/bats/helpers.bash b/bats/helpers.bash
new file mode 100644
index 00000000..c231d6cd
--- /dev/null
+++ b/bats/helpers.bash
@@ -0,0 +1,107 @@
+REPO_ROOT=$(git rev-parse --show-toplevel)
+GQL_DIR="$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")/gql"
+COMPOSE_PROJECT_NAME="${COMPOSE_PROJECT_NAME:-${REPO_ROOT##*/}}"
+
+GQL_ENDPOINT="http://localhost:2252/graphql"
+
+CALA_HOME="${CALA_HOME:-.cala}"
+
+reset_pg() {
+  docker exec "${COMPOSE_PROJECT_NAME}-server-pg-1" psql $PG_CON -c "DROP SCHEMA public CASCADE"
+  docker exec "${COMPOSE_PROJECT_NAME}-server-pg-1" psql $PG_CON -c "CREATE SCHEMA public"
+  docker exec "${COMPOSE_PROJECT_NAME}-examples-pg-1" psql $PG_CON -c "DROP SCHEMA public CASCADE"
+  docker exec "${COMPOSE_PROJECT_NAME}-examples-pg-1" psql $PG_CON -c "CREATE SCHEMA public"
+}
+
+server_cmd() {
+  server_location=${REPO_ROOT}/target/debug/cala-server
+  if [[ ! -z ${CARGO_TARGET_DIR} ]] ; then
+    server_location=${CARGO_TARGET_DIR}/debug/cala-server
+  fi
+
+  ${server_location} $@
+}
+
+start_server() {
+  background server_cmd > .e2e-logs
+  for i in {1..20}
+  do
+    if head .e2e-logs | grep -q 'Starting graphql server on port'; then
+      break
+    else
+      sleep 1
+    fi
+  done
+}
+
+stop_server() {
+  if [[ -f ${CALA_HOME}/server-pid ]]; then
+    kill -9 $(cat ${CALA_HOME}/server-pid) || true
+  fi
+}
+
+gql_file() {
+  echo "${GQL_DIR}/$1.gql"
+}
+
+gql_query() {
+  cat "$(gql_file $1)" | tr '\n' ' ' | sed 's/"/\\"/g'
+}
+
+graphql_output() {
+  echo $output | jq -r "$@"
+}
+
+exec_graphql() {
+  local query_name=$1
+  local variables=${2:-"{}"}
+
+  if [[ "${BATS_TEST_DIRNAME}" != "" ]]; then
+    run_cmd="run"
+  else
+    run_cmd=""
+  fi
+
+  ${run_cmd} curl -s \
+    -X POST \
+    ${AUTH_HEADER:+ -H "$AUTH_HEADER"} \
+    -H "Content-Type: application/json" \
+    -d "{\"query\": \"$(gql_query $query_name)\", \"variables\": $variables}" \
+    "${GQL_ENDPOINT}"
+}
+
+# Run the given command in the background. Useful for starting a
+# node and then moving on with commands that exercise it for the
+# test.
+#
+# Ensures that BATS' handling of file handles is taken into account;
+# see
+# https://github.com/bats-core/bats-core#printing-to-the-terminal
+# https://github.com/sstephenson/bats/issues/80#issuecomment-174101686
+# for details.
+background() {
+  "$@" 3>- &
+  echo $!
+}
+
+# Taken from https://github.com/docker/swarm/blob/master/test/integration/helpers.bash
+# Retry a command $1 times until it succeeds. Wait $2 seconds between retries.
+retry() {
+  local attempts=$1
+  shift
+  local delay=$1
+  shift
+  local i
+
+  for ((i=0; i < attempts; i++)); do
+    run "$@"
+    if [[ "$status" -eq 0 ]] ; then
+      return 0
+    fi
+    sleep "$delay"
+  done
+
+  echo "Command \"$*\" failed $attempts times. Output: $output"
+  false
+}
+
diff --git a/cala-server/schema.graphql b/cala-server/schema.graphql
index 2e95db5a..f2d1378f 100644
--- a/cala-server/schema.graphql
+++ b/cala-server/schema.graphql
@@ -76,6 +76,10 @@ input ImportJobCreateInput {
 	endpoint: String!
 }
 
+type ImportJobCreatePayload {
+	importJob: ImportJob!
+}
+
 """
 An edge in a connection.
 """
@@ -116,7 +120,7 @@ type JournalCreatePayload {
 
 type Mutation {
 	journalCreate(input: JournalCreateInput!): JournalCreatePayload!
-	importJobCreate(input: ImportJobCreateInput!): ImportJob!
+	importJobCreate(input: ImportJobCreateInput!): ImportJobCreatePayload!
 }
 
 """
diff --git a/cala-server/src/cli/mod.rs b/cala-server/src/cli/mod.rs
index 46c9971f..307473ef 100644
--- a/cala-server/src/cli/mod.rs
+++ b/cala-server/src/cli/mod.rs
@@ -1,8 +1,9 @@
 pub mod config;
 mod db;
 
+use anyhow::Context;
 use clap::Parser;
-use std::path::PathBuf;
+use std::{fs, path::PathBuf};
 
 use self::config::{Config, EnvOverride};
 
@@ -17,6 +18,13 @@ struct Cli {
         value_name = "FILE"
     )]
     config: PathBuf,
+    #[clap(
+        long,
+        env = "CALA_HOME",
+        default_value = ".cala",
+        value_name = "DIRECTORY"
+    )]
+    cala_home: String,
     #[clap(env = "PG_CON")]
     pg_con: String,
 }
@@ -26,14 +34,15 @@ pub async fn run() -> anyhow::Result<()> {
 
     let config = Config::from_path(cli.config, EnvOverride { db_con: cli.pg_con })?;
 
-    run_cmd(config).await?;
+    run_cmd(&cli.cala_home, config).await?;
 
     Ok(())
 }
 
-async fn run_cmd(config: Config) -> anyhow::Result<()> {
+async fn run_cmd(cala_home: &str, config: Config) -> anyhow::Result<()> {
     use cala_ledger::{CalaLedger, CalaLedgerConfig};
     cala_tracing::init_tracer(config.tracing)?;
+    store_server_pid(cala_home, std::process::id())?;
     let pool = db::init_pool(&config.db).await?;
     let ledger_config = CalaLedgerConfig::builder().pool(pool.clone()).build()?;
     let ledger = CalaLedger::init(ledger_config).await?;
@@ -41,3 +50,15 @@ async fn run_cmd(config: Config) -> anyhow::Result<()> {
     crate::server::run(config.server, app).await?;
     Ok(())
 }
+
+pub fn store_server_pid(cala_home: &str, pid: u32) -> anyhow::Result<()> {
+    create_cala_dir(cala_home)?;
+    let _ = fs::remove_file(format!("{cala_home}/server-pid"));
+    fs::write(format!("{cala_home}/server-pid"), pid.to_string()).context("Writing PID file")?;
+    Ok(())
+}
+
+fn create_cala_dir(bria_home: &str) -> anyhow::Result<()> {
+    let _ = fs::create_dir(bria_home);
+    Ok(())
+}
diff --git a/cala-server/src/graphql/import_job.rs b/cala-server/src/graphql/import_job.rs
index a3b26622..9b9223b5 100644
--- a/cala-server/src/graphql/import_job.rs
+++ b/cala-server/src/graphql/import_job.rs
@@ -20,7 +20,7 @@ pub struct ImportJob {
 
 #[derive(SimpleObject)]
 pub struct ImportJobCreatePayload {
-    pub journal: ImportJob,
+    pub import_job: ImportJob,
 }
 
 #[derive(Serialize, Deserialize)]
diff --git a/cala-server/src/graphql/schema.rs b/cala-server/src/graphql/schema.rs
index 2070596c..05ae5583 100644
--- a/cala-server/src/graphql/schema.rs
+++ b/cala-server/src/graphql/schema.rs
@@ -107,11 +107,13 @@ impl Mutation {
         &self,
         ctx: &Context<'_>,
         input: ImportJobCreateInput,
-    ) -> Result<ImportJob> {
+    ) -> Result<ImportJobCreatePayload> {
         let app = ctx.data_unchecked::<CalaApp>();
-        Ok(app
-            .create_import_job(input.name, input.description, input.endpoint)
-            .await
-            .map(ImportJob::from)?)
+        Ok(ImportJobCreatePayload {
+            import_job: app
+                .create_import_job(input.name, input.description, input.endpoint)
+                .await
+                .map(ImportJob::from)?,
+        })
     }
 }
diff --git a/cala-server/src/import_job/entity.rs b/cala-server/src/import_job/entity.rs
index a4bf4371..ecaeb437 100644
--- a/cala-server/src/import_job/entity.rs
+++ b/cala-server/src/import_job/entity.rs
@@ -71,15 +71,16 @@ pub struct NewImportJob {
 
 impl NewImportJob {
     pub fn builder() -> NewImportJobBuilder {
-        NewImportJobBuilder::default()
+        let mut builder = NewImportJobBuilder::default();
+        builder.id(ImportJobId::new());
+        builder
     }
 
     pub(super) fn initial_events(self) -> EntityEvents<ImportJobEvent> {
-        let id = ImportJobId::new();
         EntityEvents::init(
-            id,
+            self.id,
             [ImportJobEvent::Initialized {
-                id,
+                id: self.id,
                 name: self.name,
                 description: self.description,
                 import_config: self.import_config,
diff --git a/docker-compose.override.yml b/docker-compose.override.yml
deleted file mode 100644
index 3c288958..00000000
--- a/docker-compose.override.yml
+++ /dev/null
@@ -1,8 +0,0 @@
-version: "3"
-services:
-  postgres:
-    ports:
-    - "5432:5432"
-  otel-agent:
-    ports:
-      - "4317:4317" # OpenTelemetry receiver
diff --git a/docker-compose.yml b/docker-compose.yml
index a994633e..2c68ac61 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -3,9 +3,10 @@ services:
   integration-deps:
     image: busybox
     depends_on:
-    - postgres
+    - server-pg
+    - examples-pg
     - otel-agent
-  postgres:
+  server-pg:
     image: postgres:14.1
     ports:
     - "5432:5432"
@@ -18,7 +19,22 @@ services:
       interval: 5s
       timeout: 5s
       retries: 5
+  examples-pg:
+    image: postgres:14.1
+    ports:
+    - "5433:5432"
+    environment:
+      - POSTGRES_USER=user
+      - POSTGRES_PASSWORD=password
+      - POSTGRES_DB=pg
+    healthcheck:
+      test: [ "CMD-SHELL", "pg_isready" ]
+      interval: 5s
+      timeout: 5s
+      retries: 5
   otel-agent:
+    ports:
+      - "4317:4317" # OpenTelemetry receiver
     image: otel/opentelemetry-collector-contrib:0.57.2
     command: [ "--config=/etc/otel-agent-config.yaml" ]
     environment:
diff --git a/examples/rust/Cargo.toml b/examples/rust/Cargo.toml
index 0c7c975a..da630495 100644
--- a/examples/rust/Cargo.toml
+++ b/examples/rust/Cargo.toml
@@ -4,10 +4,9 @@ version = "0.1.0"
 edition = "2021"
 workspace = "../../"
 
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
-
 [dependencies]
-anyhow = "1.0"
 cala-ledger = { path = "../../cala-ledger" }
-tokio = { version = "1.34", features = ["rt-multi-thread", "macros"] }
+
+anyhow = { workspace = true }
+tokio = { workspace = true }
 sqlx = { workspace = true }
diff --git a/examples/rust/src/main.rs b/examples/rust/src/main.rs
index 9802a6a6..32792772 100644
--- a/examples/rust/src/main.rs
+++ b/examples/rust/src/main.rs
@@ -2,8 +2,7 @@ use cala_ledger::{account::*, journal::*, migrate::IncludeMigrations, query::*,
 
 #[tokio::main]
 async fn main() -> anyhow::Result<()> {
-    let pg_host = std::env::var("PG_HOST").unwrap_or("localhost".to_string());
-    let pg_con = format!("postgres://user:password@{pg_host}:5432/pg");
+    let pg_con = format!("postgres://user:password@localhost:5433/pg");
     let pool = sqlx::postgres::PgPoolOptions::new()
         .max_connections(20)
         .connect(&pg_con)
@@ -15,6 +14,7 @@ async fn main() -> anyhow::Result<()> {
     let cala_config = CalaLedgerConfig::builder()
         .pool(pool)
         .exec_migrations(false)
+        .outbox(OutboxServerConfig::default())
         .build()?;
     let cala = CalaLedger::init(cala_config).await?;
     let new_account = NewAccount::builder()