diff --git a/.circleci/config.yml b/.circleci/config.yml
deleted file mode 100644
index cf25739..0000000
--- a/.circleci/config.yml
+++ /dev/null
@@ -1,37 +0,0 @@
-version: 2.1
-
-executors:
-  aebuilder:
-    docker:
-      - image: aeternity/builder:bionic-otp23
-        user: builder
-    working_directory: ~/src
-
-jobs:
-  build:
-    executor: aebuilder
-    steps:
-      - checkout
-      - restore_cache:
-          keys:
-            - dialyzer-cache-v1-{{ .Branch }}-{{ .Revision }}
-            - dialyzer-cache-v1-{{ .Branch }}-
-            - dialyzer-cache-v1-
-      - run:
-          name: Build
-          command: rebar3 compile
-      - run:
-          name: Static Analysis
-          command: rebar3 dialyzer
-      - run:
-          name: Eunit
-          command: rebar3 eunit
-      - run:
-          name: Common Tests
-          command: rebar3 ct
-      - save_cache:
-          key: dialyzer-cache-v1-{{ .Branch }}-{{ .Revision }}
-          paths:
-            - _build/default/rebar3_20.3.8_plt
-      - store_artifacts:
-          path: _build/test/logs
diff --git a/.gitignore b/.gitignore
index 40ca652..6797f92 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,7 +7,7 @@ _*
 *.swp
 *.swo
 .erlang.cookie
-ebin
+ebin/*.beam
 log
 erl_crash.dump
 .rebar
diff --git a/ebin/eblake2.app b/ebin/eblake2.app
new file mode 100644
index 0000000..892cabc
--- /dev/null
+++ b/ebin/eblake2.app
@@ -0,0 +1,7 @@
+{application,eblake2,
+             [{description,"A pure Erlang Blake2 implementation"},
+              {registered,[]},
+              {included_applications,[]},
+              {applications,[stdlib,kernel]},
+              {vsn,"1.0.1"},
+              {modules,[eblake2,eblake2_tests]}]}.