diff --git a/.drone-manifest.yml b/.drone-manifest.yml
deleted file mode 100644
index 2e2681e..0000000
--- a/.drone-manifest.yml
+++ /dev/null
@@ -1,22 +0,0 @@
-image: happydomain/checker-legacy-records:{{#if build.tag}}{{trimPrefix "v" build.tag}}{{else}}latest{{/if}}
-{{#if build.tags}}
-tags:
-{{#each build.tags}}
-  - {{this}}
-{{/each}}
-{{/if}}
-manifests:
-  - image: happydomain/checker-legacy-records:{{#if build.tag}}{{trimPrefix "v" build.tag}}-{{/if}}linux-amd64
-    platform:
-      architecture: amd64
-      os: linux
-  - image: happydomain/checker-legacy-records:{{#if build.tag}}{{trimPrefix "v" build.tag}}-{{/if}}linux-arm64
-    platform:
-      architecture: arm64
-      os: linux
-      variant: v8
-  - image: happydomain/checker-legacy-records:{{#if build.tag}}{{trimPrefix "v" build.tag}}-{{/if}}linux-arm
-    platform:
-      architecture: arm
-      os: linux
-      variant: v7
diff --git a/.drone.yml b/.drone.yml
deleted file mode 100644
index 85b4a6b..0000000
--- a/.drone.yml
+++ /dev/null
@@ -1,187 +0,0 @@
----
-kind: pipeline
-type: docker
-name: build-amd64
-
-platform:
-  os: linux
-  arch: amd64
-
-steps:
-  - name: checker build
-    image: golang:1-alpine
-    commands:
-      - apk add --no-cache git make
-      - make
-    environment:
-      CHECKER_VERSION: "${DRONE_BRANCH}-${DRONE_COMMIT}"
-      CGO_ENABLED: 0
-    when:
-      event:
-        exclude:
-          - tag
-
-  - name: checker build tag
-    image: golang:1-alpine
-    commands:
-      - apk add --no-cache git make
-      - make
-    environment:
-      CHECKER_VERSION: "${DRONE_SEMVER}"
-      CGO_ENABLED: 0
-    when:
-      event:
-        - tag
-
-  - name: publish on Docker Hub
-    image: plugins/docker
-    settings:
-      repo: happydomain/checker-legacy-records
-      auto_tag: true
-      auto_tag_suffix: ${DRONE_STAGE_OS}-${DRONE_STAGE_ARCH}
-      dockerfile: Dockerfile
-      build_args:
-        - CHECKER_VERSION=${DRONE_BRANCH}-${DRONE_COMMIT}
-      username:
-        from_secret: docker_username
-      password:
-        from_secret: docker_password
-    when:
-      event:
-        exclude:
-          - tag
-
-  - name: publish on Docker Hub (tag)
-    image: plugins/docker
-    settings:
-      repo: happydomain/checker-legacy-records
-      auto_tag: true
-      auto_tag_suffix: ${DRONE_STAGE_OS}-${DRONE_STAGE_ARCH}
-      dockerfile: Dockerfile
-      build_args:
-        - CHECKER_VERSION=${DRONE_SEMVER}
-      username:
-        from_secret: docker_username
-      password:
-        from_secret: docker_password
-    when:
-      event:
-        - tag
-
-trigger:
-  branch:
-    exclude:
-      - renovate/*
-  event:
-    - cron
-    - push
-    - tag
-
----
-kind: pipeline
-type: docker
-name: build-arm64
-
-platform:
-  os: linux
-  arch: arm64
-
-steps:
-  - name: checker build
-    image: golang:1-alpine
-    commands:
-      - apk add --no-cache git make
-      - make
-    environment:
-      CHECKER_VERSION: "${DRONE_BRANCH}-${DRONE_COMMIT}"
-      CGO_ENABLED: 0
-    when:
-      event:
-        exclude:
-          - tag
-
-  - name: checker build tag
-    image: golang:1-alpine
-    commands:
-      - apk add --no-cache git make
-      - make
-    environment:
-      CHECKER_VERSION: "${DRONE_SEMVER}"
-      CGO_ENABLED: 0
-    when:
-      event:
-        - tag
-
-  - name: publish on Docker Hub
-    image: plugins/docker
-    settings:
-      repo: happydomain/checker-legacy-records
-      auto_tag: true
-      auto_tag_suffix: ${DRONE_STAGE_OS}-${DRONE_STAGE_ARCH}
-      dockerfile: Dockerfile
-      build_args:
-        - CHECKER_VERSION=${DRONE_BRANCH}-${DRONE_COMMIT}
-      username:
-        from_secret: docker_username
-      password:
-        from_secret: docker_password
-    when:
-      event:
-        exclude:
-          - tag
-
-  - name: publish on Docker Hub (tag)
-    image: plugins/docker
-    settings:
-      repo: happydomain/checker-legacy-records
-      auto_tag: true
-      auto_tag_suffix: ${DRONE_STAGE_OS}-${DRONE_STAGE_ARCH}
-      dockerfile: Dockerfile
-      build_args:
-        - CHECKER_VERSION=${DRONE_SEMVER}
-      username:
-        from_secret: docker_username
-      password:
-        from_secret: docker_password
-    when:
-      event:
-        - tag
-
-trigger:
-  event:
-    - cron
-    - push
-    - tag
-
----
-kind: pipeline
-name: docker-manifest
-
-platform:
-  os: linux
-  arch: arm64
-
-steps:
-  - name: publish on Docker Hub
-    image: plugins/manifest
-    settings:
-      auto_tag: true
-      ignore_missing: true
-      spec: .drone-manifest.yml
-      username:
-        from_secret: docker_username
-      password:
-        from_secret: docker_password
-
-trigger:
-  branch:
-    exclude:
-      - renovate/*
-  event:
-    - cron
-    - push
-    - tag
-
-depends_on:
-  - build-amd64
-  - build-arm64
diff --git a/README.md b/README.md
index 095c361..9ebefa9 100644
--- a/README.md
+++ b/README.md
@@ -20,12 +20,6 @@ finding.
 | Warning      | `SPF`, `A6`, `MD`, `MF`                                                                       | RFC 7208 / RFC 6563 / RFC 973: replaced by TXT, AAAA, MX.                                |
 | Informational| `WKS`, `MB`, `MG`, `MR`, `MINFO`, `NULL`, `GPOS`, `NSAP`, `NSAP-PTR`, `X25`, `ISDN`, `RT`, `ATMA`, `EID`, `NIMLOC`, `SINK`, `NINFO`, `RKEY` | Experimental or historical (RFC 1035, 1183, 1706, 1712, ...); safe to delete. |
 
-## Rules
-
-| Code              | Description                                                                                       | Severity            |
-|-------------------|---------------------------------------------------------------------------------------------------|---------------------|
-| `legacy_records`  | Detects DNS record types deprecated by the IETF and reports each occurrence with RFC references. | CRITICAL            |
-
 ## Tests
 
 `go test ./...` covers: