diff --git a/.git-hooks/pre_push/cargo_test.rb b/.git-hooks/pre_push/cargo_test.rb
deleted file mode 100644
index 3ee71be..0000000
--- a/.git-hooks/pre_push/cargo_test.rb
+++ /dev/null
@@ -1,13 +0,0 @@
-module Overcommit::Hook::PrePush
-  # Runs `cargo test` before push
-  #
-  class CargoTest < Base
-    def run
-      result = execute(command)
-      return :pass if result.success?
-
-      output = result.stdout + result.stderr
-      [:fail, output]
-    end
-  end
-end
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
deleted file mode 100644
index eb4e734..0000000
--- a/.gitlab-ci.yml
+++ /dev/null
@@ -1,99 +0,0 @@
-image: "debian:stretch-slim"
-
-stages:
-  - prepare
-  - build
-  - publish
-
-variables:
-  RUSTUP_HOME: "$CI_PROJECT_DIR/.rustup"
-  CARGO_HOME: "$CI_PROJECT_DIR/.cargo"
-
-.write_cache:
-  cache:
-    key: "$CI_COMMIT_REF_SLUG-rustup"
-    paths:
-      - .rustup
-      - .cargo
-
-.read_cache:
-  cache:
-    key: "$CI_COMMIT_REF_SLUG-rustup"
-    paths:
-      - .rustup
-      - .cargo
-    policy: pull
-
-.toolchain-stable:
-  extends: .read_cache
-  before_script:
-    - apt-get update
-    - apt-get install -y --no-install-recommends ca-certificates libssl-dev libc6-dev pkg-config gcc
-    - export PATH="$CARGO_HOME/bin:$PATH"
-    - rustup default stable
-
-.toolchain-nightly:
-  extends: .read_cache
-  allow_failure: true
-  before_script:
-    - apt-get update
-    - apt-get install -y --no-install-recommends ca-certificates libssl-dev libc6-dev pkg-config gcc
-    - export PATH="$CARGO_HOME/bin:$PATH"
-    - rustup default nightly
-
-.build-only-when-changes: &build-only-when-changes
-  only:
-    changes:
-      - Cargo.toml
-      - Cargo.lock
-      - src/**/*.rs
-
-####### Jobs #######
-
-install-rust:
-  extends: .write_cache
-  stage: prepare
-  script:
-    - apt-get update
-    - apt-get install -y --no-install-recommends ca-certificates curl
-    - curl https://sh.rustup.rs > rustup.sh
-    - sh rustup.sh -y --default-host x86_64-unknown-linux-gnu
-    - export PATH="$CARGO_HOME/bin:$PATH"
-    - rustup install stable
-    - rustup install nightly
-  <<: *build-only-when-changes
-
-build-stable-no-default-features:
-  extends: .toolchain-stable
-  stage: build
-  script:
-    - cargo test --tests --no-default-features
-  <<: *build-only-when-changes
-
-build-stable-features-rich_presence:
-  extends: .toolchain-stable
-  stage: build
-  script:
-    - cargo test --tests --no-default-features
-      --features "rich_presence"
-    - cargo test --no-default-features
-      --features "rich_presence"
-      --example "discord_presence"
-      --example "discord_presence_subscribe"
-  <<: *build-only-when-changes
-
-build-nightly:
-  extends: .toolchain-nightly
-  stage: build
-  script:
-    - cargo test --tests
-    - cargo test --examples
-  <<: *build-only-when-changes
-
-deploy-crates-io:
-  extends: .toolchain-stable
-  stage: publish
-  script:
-    - cargo publish --token $CRATES_IO_API_TOKEN
-  only:
-    - tags@valeth/discord-rpc-client.rs
diff --git a/.overcommit.yml b/.overcommit.yml
deleted file mode 100644
index ee4d494..0000000
--- a/.overcommit.yml
+++ /dev/null
@@ -1,13 +0,0 @@
-PreCommit:
-  TrailingWhitespace:
-   enabled: true
-   exclude:
-     - 'target/**/*'
-
-PrePush:
-  CargoTest:
-    enabled: true
-    description: 'Run Cargo tests'
-    required_executable: 'cargo'
-    flags: ['test', '--all']
-    include: "**/*.rs"
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 0b25e85..1de1b43 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -5,9 +5,7 @@ Contributions to this project are welcome, just follow these steps.
 1. Fork this repository and create a feature branch named after the feature you want to implement
 2. Make your changes on your branch
 3. Add some test if possibe
-4. Make sure all tests pass (I recommend installing [Overcommit][overcommit])
+4. Make sure all tests pass
 5. Submit a PR/MR on GitHub or GitLab
 
 > **Note**: Make sure you rebase your feature branch on top of master from time to time.
-
-[overcommit]: https://github.com/brigade/overcommit
diff --git a/appveyor.yml b/appveyor.yml
deleted file mode 100644
index 017492b..0000000
--- a/appveyor.yml
+++ /dev/null
@@ -1,22 +0,0 @@
-version: 1.0.{build}
-
-environment:
-  matrix:
-    - TARGET: x86_64-pc-windows-msvc
-
-install:
-  - appveyor-retry appveyor DownloadFile https://win.rustup.rs/ -FileName rustup-init.exe
-  - rustup-init.exe -y --default-host x86_64-pc-windows-msvc --default-toolchain stable
-  - set PATH=%PATH%;C:\Users\appveyor\.cargo\bin
-  - rustup -V
-  - cargo -V
-
-clone_depth: 1
-
-skip_tags: true
-
-build: false
-
-test_script:
-  - cargo test --all
-  - cargo test --examples
diff --git a/examples/discord_presence.rs b/examples/discord_presence.rs
index 31ba4cd..86b76d0 100644
--- a/examples/discord_presence.rs
+++ b/examples/discord_presence.rs
@@ -1,6 +1,3 @@
-extern crate discord_rpc_client;
-extern crate simplelog;
-
 use discord_rpc_client::{models::Activity, Client as DiscordRPC};
 use simplelog::*;
 use std::io;
diff --git a/examples/discord_presence_subscribe.rs b/examples/discord_presence_subscribe.rs
index 9aa93af..691b3a8 100644
--- a/examples/discord_presence_subscribe.rs
+++ b/examples/discord_presence_subscribe.rs
@@ -1,6 +1,3 @@
-extern crate discord_rpc_client;
-extern crate simplelog;
-
 use discord_rpc_client::{models::Event, Client as DiscordRPC};
 use simplelog::*;
 use std::{thread, time};