diff --git a/.editorconfig b/.editorconfig
new file mode 100644
index 0000000..728893b
--- /dev/null
+++ b/.editorconfig
@@ -0,0 +1,11 @@
+root = true
+
+[*]
+indent_style = space
+indent_size = 4
+end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+[*.{sh,swift-format,yaml}]
+indent_size = 2
diff --git a/.github/workflows/pull-request.yaml b/.github/workflows/pull-request.yaml
new file mode 100644
index 0000000..b5fdc31
--- /dev/null
+++ b/.github/workflows/pull-request.yaml
@@ -0,0 +1,14 @@
+name: Pull request
+
+on:
+  pull_request:
+    types: [opened, reopened, synchronize]
+
+jobs:
+  soundness:
+    name: Soundness
+    uses: ./.github/workflows/soundness.yaml
+
+  unit_test:
+    name: Unit Test
+    uses: ./.github/workflows/unit-test.yaml
diff --git a/.github/workflows/soundness.yaml b/.github/workflows/soundness.yaml
new file mode 100644
index 0000000..3789c31
--- /dev/null
+++ b/.github/workflows/soundness.yaml
@@ -0,0 +1,42 @@
+name: Soundness
+on:
+  workflow_call:
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}-soundness
+  cancel-in-progress: true
+jobs:
+  unacceptable-language-check:
+    name: Unacceptable language check
+    runs-on: ubuntu-latest
+    timeout-minutes: 1
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+      - name: Run unacceptable language check
+        run: ./scripts/check-unacceptable-language.sh
+
+  license-header-check:
+    name: License headers check
+    runs-on: ubuntu-latest
+    timeout-minutes: 1
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+      - name: Run license header check
+        run: ./scripts/check-license-headers.sh
+
+  format-check:
+    name: Format check
+    runs-on: ubuntu-latest
+    timeout-minutes: 5
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+      - name: Install Swift
+        uses: vapor/swiftly-action@v0.1
+        with:
+          toolchain: latest
+        env:
+          SWIFTLY_GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      - name: Run format check
+        run: ./scripts/check-swift-format.sh
diff --git a/.github/workflows/unit-test.yaml b/.github/workflows/unit-test.yaml
new file mode 100644
index 0000000..1132960
--- /dev/null
+++ b/.github/workflows/unit-test.yaml
@@ -0,0 +1,30 @@
+name: Unit Test
+on:
+  workflow_call:
+  push:
+    branches: [main]
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}-unit-test
+  cancel-in-progress: true
+jobs:
+  unit-test:
+    name: Unit Test
+    runs-on: ubuntu-latest
+    timeout-minutes: 10
+    strategy:
+      fail-fast: false
+      matrix:
+        toolchain: [latest]
+    steps:
+      - name: Install Swift
+        uses: vapor/swiftly-action@v0.1
+        with:
+          toolchain: ${{ matrix.toolchain }}
+        env:
+          SWIFTLY_GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      - name: Checkout
+        uses: actions/checkout@v4.2.2
+      - name: Resolve Swift dependencies
+        run: swift package resolve
+      - name: Run Unit Tests
+        run: swift test --parallel --enable-code-coverage
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..619cef7
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,12 @@
+.DS_Store
+.build/
+.swiftpm/
+Package.resolved
+xcuserdata/
+*.xcodeproj/*
+!*.xcodeproj/project.pbxproj
+!*.xcodeproj/xcshareddata/
+!*.xcworkspace/contents.xcworkspacedata
+/*.gcno
+**/xcshareddata/WorkspaceSettings.xcsettings
+.vscode/
diff --git a/.licenseignore b/.licenseignore
new file mode 100644
index 0000000..adbc119
--- /dev/null
+++ b/.licenseignore
@@ -0,0 +1,9 @@
+.gitignore
+.licenseignore
+.unacceptablelanguageignore
+.swift-format
+.editorconfig
+*.md
+*.txt
+*.yaml
+Package.swift
diff --git a/.swift-format b/.swift-format
new file mode 100644
index 0000000..7fa06fb
--- /dev/null
+++ b/.swift-format
@@ -0,0 +1,62 @@
+{
+  "version" : 1,
+  "indentation" : {
+    "spaces" : 4
+  },
+  "tabWidth" : 4,
+  "fileScopedDeclarationPrivacy" : {
+    "accessLevel" : "private"
+  },
+  "spacesAroundRangeFormationOperators" : false,
+  "indentConditionalCompilationBlocks" : false,
+  "indentSwitchCaseLabels" : false,
+  "lineBreakAroundMultilineExpressionChainComponents" : false,
+  "lineBreakBeforeControlFlowKeywords" : false,
+  "lineBreakBeforeEachArgument" : true,
+  "lineBreakBeforeEachGenericRequirement" : true,
+  "lineLength" : 120,
+  "maximumBlankLines" : 1,
+  "respectsExistingLineBreaks" : true,
+  "prioritizeKeepingFunctionOutputTogether" : true,
+  "rules" : {
+    "AllPublicDeclarationsHaveDocumentation" : false,
+    "AlwaysUseLiteralForEmptyCollectionInit" : false,
+    "AlwaysUseLowerCamelCase" : false,
+    "AmbiguousTrailingClosureOverload" : true,
+    "BeginDocumentationCommentWithOneLineSummary" : false,
+    "DoNotUseSemicolons" : true,
+    "DontRepeatTypeInStaticProperties" : true,
+    "FileScopedDeclarationPrivacy" : true,
+    "FullyIndirectEnum" : true,
+    "GroupNumericLiterals" : true,
+    "IdentifiersMustBeASCII" : true,
+    "NeverForceUnwrap" : false,
+    "NeverUseForceTry" : false,
+    "NeverUseImplicitlyUnwrappedOptionals" : false,
+    "NoAccessLevelOnExtensionDeclaration" : true,
+    "NoAssignmentInExpressions" : true,
+    "NoBlockComments" : true,
+    "NoCasesWithOnlyFallthrough" : true,
+    "NoEmptyTrailingClosureParentheses" : true,
+    "NoLabelsInCasePatterns" : true,
+    "NoLeadingUnderscores" : false,
+    "NoParensAroundConditions" : true,
+    "NoVoidReturnOnFunctionSignature" : true,
+    "OmitExplicitReturns" : true,
+    "OneCasePerLine" : true,
+    "OneVariableDeclarationPerLine" : true,
+    "OnlyOneTrailingClosureArgument" : true,
+    "OrderedImports" : true,
+    "ReplaceForEachWithForLoop" : true,
+    "ReturnVoidInsteadOfEmptyTuple" : true,
+    "UseEarlyExits" : false,
+    "UseExplicitNilCheckInConditions" : false,
+    "UseLetInEveryBoundCaseVariable" : false,
+    "UseShorthandTypeNames" : true,
+    "UseSingleLinePropertyGetter" : false,
+    "UseSynthesizedInitializer" : false,
+    "UseTripleSlashForDocumentationComments" : true,
+    "UseWhereClausesInForLoops" : false,
+    "ValidateDocumentationComments" : false
+  }
+}
diff --git a/.unacceptablelanguageignore b/.unacceptablelanguageignore
new file mode 100644
index 0000000..f36b317
--- /dev/null
+++ b/.unacceptablelanguageignore
@@ -0,0 +1 @@
+scripts/check-unacceptable-language.sh
diff --git a/CODE_OF_CONDUCT.md b/CODE_OF_CONDUCT.md
new file mode 100644
index 0000000..4cc38c2
--- /dev/null
+++ b/CODE_OF_CONDUCT.md
@@ -0,0 +1,76 @@
+# Contributor Covenant Code of Conduct
+
+## Our Pledge
+
+In the interest of fostering an open and welcoming environment, we as
+contributors and maintainers pledge to making participation in our project and
+our community a harassment-free experience for everyone, regardless of age, body
+size, disability, ethnicity, sex characteristics, gender identity and expression,
+level of experience, education, socio-economic status, nationality, personal
+appearance, race, religion, or sexual identity and orientation.
+
+## Our Standards
+
+Examples of behavior that contributes to creating a positive environment
+include:
+
+* Using welcoming and inclusive language
+* Being respectful of differing viewpoints and experiences
+* Gracefully accepting constructive criticism
+* Focusing on what is best for the community
+* Showing empathy towards other community members
+
+Examples of unacceptable behavior by participants include:
+
+* The use of sexualized language or imagery and unwelcome sexual attention or
+ advances
+* Trolling, insulting/derogatory comments, and personal or political attacks
+* Public or private harassment
+* Publishing others' private information, such as a physical or electronic
+ address, without explicit permission
+* Other conduct which could reasonably be considered inappropriate in a
+ professional setting
+
+## Our Responsibilities
+
+Project maintainers are responsible for clarifying the standards of acceptable
+behavior and are expected to take appropriate and fair corrective action in
+response to any instances of unacceptable behavior.
+
+Project maintainers have the right and responsibility to remove, edit, or
+reject comments, commits, code, wiki edits, issues, and other contributions
+that are not aligned to this Code of Conduct, or to ban temporarily or
+permanently any contributor for other behaviors that they deem inappropriate,
+threatening, offensive, or harmful.
+
+## Scope
+
+This Code of Conduct applies both within project spaces and in public spaces
+when an individual is representing the project or its community. Examples of
+representing a project or community include using an official project e-mail
+address, posting via an official social media account, or acting as an appointed
+representative at an online or offline event. Representation of a project may be
+further defined and clarified by project maintainers.
+
+## Enforcement
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be
+reported by contacting the project team at [swift-open-feature@slashmo.codes](mailto:swift-open-feature@slashmo.codes).
+All complaints will be reviewed and investigated and will result in a response that
+is deemed necessary and appropriate to the circumstances. The project team is
+obligated to maintain confidentiality with regard to the reporter of an incident.
+Further details of specific enforcement policies may be posted separately.
+
+Project maintainers who do not follow or enforce the Code of Conduct in good
+faith may face temporary or permanent repercussions as determined by other
+members of the project's leadership.
+
+## Attribution
+
+This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4,
+available at https://www.contributor-covenant.org/version/1/4/code-of-conduct.html
+
+[homepage]: https://www.contributor-covenant.org
+
+For answers to common questions about this code of conduct, see
+https://www.contributor-covenant.org/faq
diff --git a/LICENSE.txt b/LICENSE.txt
new file mode 100644
index 0000000..261eeb9
--- /dev/null
+++ b/LICENSE.txt
@@ -0,0 +1,201 @@
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
+      publicly display, publicly perform, sublicense, and distribute the
+      Work and such Derivative Works in Source or Object form.
+
+   3. Grant of Patent License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      (except as stated in this section) patent license to make, have made,
+      use, offer to sell, sell, import, and otherwise transfer the Work,
+      where such license applies only to those patent claims licensable
+      by such Contributor that are necessarily infringed by their
+      Contribution(s) alone or by combination of their Contribution(s)
+      with the Work to which such Contribution(s) was submitted. If You
+      institute patent litigation against any entity (including a
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
+      as of the date such litigation is filed.
+
+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
+      modifications, and in Source or Object form, provided that You
+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
+          stating that You changed the files; and
+
+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
+          attribution notices from the Source form of the Work,
+          excluding those notices that do not pertain to any part of
+          the Derivative Works; and
+
+      (d) If the Work includes a "NOTICE" text file as part of its
+          distribution, then any Derivative Works that You distribute must
+          include a readable copy of the attribution notices contained
+          within such NOTICE file, excluding those notices that do not
+          pertain to any part of the Derivative Works, in at least one
+          of the following places: within a NOTICE text file distributed
+          as part of the Derivative Works; within the Source form or
+          documentation, if provided along with the Derivative Works; or,
+          within a display generated by the Derivative Works, if and
+          wherever such third-party notices normally appear. The contents
+          of the NOTICE file are for informational purposes only and
+          do not modify the License. You may add Your own attribution
+          notices within Derivative Works that You distribute, alongside
+          or as an addendum to the NOTICE text from the Work, provided
+          that such additional attribution notices cannot be construed
+          as modifying the License.
+
+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
+      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
+      or other liability obligations and/or rights consistent with this
+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "[]"
+      replaced with your own identifying information. (Don't include
+      the brackets!)  The text should be enclosed in the appropriate
+      comment syntax for the file format. We also recommend that a
+      file or class name and description of purpose be included on the
+      same "printed page" as the copyright notice for easier
+      identification within third-party archives.
+
+   Copyright [yyyy] [name of copyright owner]
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
diff --git a/NOTICE.txt b/NOTICE.txt
new file mode 100644
index 0000000..107c64a
--- /dev/null
+++ b/NOTICE.txt
@@ -0,0 +1,48 @@
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the Swift OpenFeature open source project
+//
+// Copyright (c) 2024 the Swift OpenFeature project authors
+// Licensed under Apache License v2.0
+//
+// See LICENSE.txt for license information
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+//===----------------------------------------------------------------------===//
+
+                       The Swift OpenFeature Project
+                       =============================
+
+Please visit the Swift OpenFeature web site for more information:
+
+  * https://github.com/swift-open-feature/swift-open-feature
+
+Copyright 2024 The Swift OpenFeature Project
+
+The Swift OpenFeature Project licenses this file to you under the Apache
+License, version 2.0 (the "License"); you may not use this file except in
+compliance with the License. You may obtain a copy of the License at:
+
+  https://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+License for the specific language governing permissions and limitations
+under the License.
+
+Also, please refer to each LICENSE.txt file, which is located in
+the 'license' directory of the distribution file, for the license terms of the
+components that this product depends on.
+
+-------------------------------------------------------------------------------
+
+This product contains derivations of various scripts and templates from Swift.
+
+  * LICENSE (Apache License 2.0):
+    * https://www.apache.org/licenses/LICENSE-2.0
+  * HOMEPAGE:
+    * https://github.com/swiftlang/github-workflows
+
+---
diff --git a/Package.swift b/Package.swift
new file mode 100644
index 0000000..8e79305
--- /dev/null
+++ b/Package.swift
@@ -0,0 +1,33 @@
+// swift-tools-version:6.0
+import PackageDescription
+
+let package = Package(
+    name: "swift-flagd",
+    platforms: [
+        .macOS(.v10_15),
+        .iOS(.v13),
+        .watchOS(.v6),
+        .tvOS(.v13),
+    ],
+    products: [
+        .library(name: "Flagd", targets: ["Flagd"])
+    ],
+    dependencies: [
+        .package(url: "https://github.com/swift-open-feature/swift-open-feature.git", branch: "main")
+    ],
+    targets: [
+        .target(
+            name: "Flagd",
+            dependencies: [
+                .product(name: "OpenFeature", package: "swift-open-feature")
+            ]
+        ),
+        .testTarget(
+            name: "FlagdTests",
+            dependencies: [
+                .target(name: "Flagd")
+            ]
+        ),
+    ],
+    swiftLanguageModes: [.v6]
+)
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..b270129
--- /dev/null
+++ b/README.md
@@ -0,0 +1,6 @@
+# Swift flagd
+
+[![Unit Test](https://github.com/swift-open-feature/swift-flagd/actions/workflows/unit-test.yaml/badge.svg)](https://github.com/swift-open-feature/swift-flagd/actions/workflows/unit-test.yaml)
+
+A cross-platform [flagd](https://flagd.dev) provider for Swift,
+based on [Swift OpenFeature](https://github.com/swift-open-feature/swift-open-feature).
diff --git a/Sources/Flagd/FlagdProvider.swift b/Sources/Flagd/FlagdProvider.swift
new file mode 100644
index 0000000..16a6215
--- /dev/null
+++ b/Sources/Flagd/FlagdProvider.swift
@@ -0,0 +1,12 @@
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the Swift OpenFeature open source project
+//
+// Copyright (c) 2024 the Swift OpenFeature project authors
+// Licensed under Apache License v2.0
+//
+// See LICENSE.txt for license information
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+//===----------------------------------------------------------------------===//
diff --git a/Tests/FlagdTests/FlagdProviderTests.swift b/Tests/FlagdTests/FlagdProviderTests.swift
new file mode 100644
index 0000000..16a6215
--- /dev/null
+++ b/Tests/FlagdTests/FlagdProviderTests.swift
@@ -0,0 +1,12 @@
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the Swift OpenFeature open source project
+//
+// Copyright (c) 2024 the Swift OpenFeature project authors
+// Licensed under Apache License v2.0
+//
+// See LICENSE.txt for license information
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+//===----------------------------------------------------------------------===//
diff --git a/scripts/check-license-headers.sh b/scripts/check-license-headers.sh
new file mode 100755
index 0000000..a8091cd
--- /dev/null
+++ b/scripts/check-license-headers.sh
@@ -0,0 +1,109 @@
+#!/bin/bash
+##===----------------------------------------------------------------------===##
+##
+## This source file is part of the Swift OpenFeature open source project
+##
+## Copyright (c) 2024 the Swift OpenFeature project authors
+## Licensed under Apache License v2.0
+##
+## See LICENSE.txt for license information
+##
+## SPDX-License-Identifier: Apache-2.0
+##
+##===----------------------------------------------------------------------===##
+
+##===----------------------------------------------------------------------===##
+##
+## This source file is part of the Swift.org open source project
+##
+## Copyright (c) 2024 Apple Inc. and the Swift project authors
+## Licensed under Apache License v2.0 with Runtime Library Exception
+##
+## See https://swift.org/LICENSE.txt for license information
+## See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
+##
+##===----------------------------------------------------------------------===##
+
+set -euo pipefail
+
+log() { printf -- "** %s\n" "$*" >&2; }
+error() { printf -- "** ERROR: %s\n" "$*" >&2; }
+fatal() { error "$@"; exit 1; }
+
+expected_file_header_template="@@===----------------------------------------------------------------------===@@
+@@
+@@ This source file is part of the Swift OpenFeature open source project
+@@
+@@ Copyright (c) YEARS the Swift OpenFeature project authors
+@@ Licensed under Apache License v2.0
+@@
+@@ See LICENSE.txt for license information
+@@
+@@ SPDX-License-Identifier: Apache-2.0
+@@
+@@===----------------------------------------------------------------------===@@"
+
+paths_with_missing_license=( )
+
+if [[ -f .licenseignore ]]; then
+  static_exclude_list='":(exclude).licenseignore" ":(exclude).license_header_template" '
+  dynamic_exclude_list=$(tr '\n' '\0' < .licenseignore | xargs -0 -I% printf '":(exclude)%" ')
+  exclude_list=$static_exclude_list$dynamic_exclude_list
+else
+  exclude_list=":(exclude).license_header_template"
+fi
+
+file_paths=$(echo "$exclude_list" | xargs git ls-files)
+
+while IFS= read -r file_path; do
+  file_basename=$(basename -- "${file_path}")
+  file_extension="${file_basename##*.}"
+
+  # shellcheck disable=SC2001 # We prefer to use sed here instead of bash search/replace
+  case "${file_extension}" in
+    c) expected_file_header=$(sed -e 's|@@|//|g' <<<"${expected_file_header_template}") ;;
+    cmake) expected_file_header=$(sed -e 's|@@|##|g' <<<"${expected_file_header_template}") ;;
+    gradle) expected_file_header=$(sed -e 's|@@|//|g' <<<"${expected_file_header_template}") ;;
+    groovy) expected_file_header=$(sed -e 's|@@|//|g' <<<"${expected_file_header_template}") ;;
+    h) expected_file_header=$(sed -e 's|@@|//|g' <<<"${expected_file_header_template}") ;;
+    in) expected_file_header=$(sed -e 's|@@|##|g' <<<"${expected_file_header_template}") ;;
+    java) expected_file_header=$(sed -e 's|@@|//|g' <<<"${expected_file_header_template}") ;;
+    js) expected_file_header=$(sed -e 's|@@|//|g' <<<"${expected_file_header_template}") ;;
+    json) continue ;; # JSON doesn't support comments
+    jsx) expected_file_header=$(sed -e 's|@@|//|g' <<<"${expected_file_header_template}") ;;
+    kts) expected_file_header=$(sed -e 's|@@|//|g' <<<"${expected_file_header_template}") ;;
+    proto) expected_file_header=$(sed -e 's|@@|//|g' <<<"${expected_file_header_template}") ;;
+    ps1) expected_file_header=$(sed -e 's|@@|##|g' <<<"${expected_file_header_template}") ;;
+    py) expected_file_header=$(cat <(echo '#!/usr/bin/env python3') <(sed -e 's|@@|##|g' <<<"${expected_file_header_template}")) ;;
+    rb) expected_file_header=$(cat <(echo '#!/usr/bin/env ruby') <(sed -e 's|@@|##|g' <<<"${expected_file_header_template}")) ;;
+    sh) expected_file_header=$(cat <(echo '#!/bin/bash') <(sed -e 's|@@|##|g' <<<"${expected_file_header_template}")) ;;
+    swift) expected_file_header=$(sed -e 's|@@|//|g' <<<"${expected_file_header_template}") ;;
+    swift-format) continue ;; # .swift-format is JSON and doesn't support comments
+    ts) expected_file_header=$(sed -e 's|@@|//|g' <<<"${expected_file_header_template}") ;;
+    tsx) expected_file_header=$(sed -e 's|@@|//|g' <<<"${expected_file_header_template}") ;;
+    *)
+      error "Unsupported file extension ${file_extension} for file (exclude or update this script): ${file_path}"
+      paths_with_missing_license+=("${file_path} ")
+      ;;
+  esac
+  expected_file_header_linecount=$(wc -l <<<"${expected_file_header}")
+
+  file_header=$(head -n "${expected_file_header_linecount}" "${file_path}")
+  normalized_file_header=$(
+    echo "${file_header}" \
+    | sed -e 's/20[12][0123456789]-20[12][0123456789]/YEARS/' -e 's/20[12][0123456789]/YEARS/' \
+  )
+
+  if ! diff -u \
+    --label "Expected header" <(echo "${expected_file_header}") \
+    --label "${file_path}" <(echo "${normalized_file_header}")
+  then
+    paths_with_missing_license+=("${file_path} ")
+  fi
+done <<< "$file_paths"
+
+if [ "${#paths_with_missing_license[@]}" -gt 0 ]; then
+  fatal "❌ Found missing license header in files: ${paths_with_missing_license[*]}."
+fi
+
+log "✅ Found no files with missing license header."
diff --git a/scripts/check-swift-format.sh b/scripts/check-swift-format.sh
new file mode 100755
index 0000000..45f2ddd
--- /dev/null
+++ b/scripts/check-swift-format.sh
@@ -0,0 +1,58 @@
+#!/bin/bash
+##===----------------------------------------------------------------------===##
+##
+## This source file is part of the Swift OpenFeature open source project
+##
+## Copyright (c) 2024 the Swift OpenFeature project authors
+## Licensed under Apache License v2.0
+##
+## See LICENSE.txt for license information
+##
+## SPDX-License-Identifier: Apache-2.0
+##
+##===----------------------------------------------------------------------===##
+
+##===----------------------------------------------------------------------===##
+##
+## This source file is part of the Swift.org open source project
+##
+## Copyright (c) 2024 Apple Inc. and the Swift project authors
+## Licensed under Apache License v2.0 with Runtime Library Exception
+##
+## See https://swift.org/LICENSE.txt for license information
+## See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
+##
+##===----------------------------------------------------------------------===##
+
+set -euo pipefail
+
+log() { printf -- "** %s\n" "$*" >&2; }
+error() { printf -- "** ERROR: %s\n" "$*" >&2; }
+fatal() { error "$@"; exit 1; }
+
+
+if [[ -f .swiftformatignore ]]; then
+    log "Found swiftformatignore file..."
+
+    log "Running swift format format..."
+    tr '\n' '\0' < .swiftformatignore| xargs -0 -I% printf '":(exclude)%" '| xargs git ls-files -z '*.swift' | xargs -0 swift format format --parallel --in-place
+
+    log "Running swift format lint..."
+
+    tr '\n' '\0' < .swiftformatignore | xargs -0 -I% printf '":(exclude)%" '| xargs git ls-files -z '*.swift' | xargs -0 swift format lint --strict --parallel
+else
+    log "Running swift format format..."
+    git ls-files -z '*.swift' | xargs -0 swift format format --parallel --in-place
+
+    log "Running swift format lint..."
+
+    git ls-files -z '*.swift' | xargs -0 swift format lint --strict --parallel
+fi
+
+
+
+log "Checking for modified files..."
+
+GIT_PAGER='' git diff --exit-code '*.swift'
+
+log "✅ Found no formatting issues."
diff --git a/scripts/check-unacceptable-language.sh b/scripts/check-unacceptable-language.sh
new file mode 100755
index 0000000..53d6b44
--- /dev/null
+++ b/scripts/check-unacceptable-language.sh
@@ -0,0 +1,51 @@
+#!/bin/bash
+##===----------------------------------------------------------------------===##
+##
+## This source file is part of the Swift OpenFeature open source project
+##
+## Copyright (c) 2024 the Swift OpenFeature project authors
+## Licensed under Apache License v2.0
+##
+## See LICENSE.txt for license information
+##
+## SPDX-License-Identifier: Apache-2.0
+##
+##===----------------------------------------------------------------------===##
+
+##===----------------------------------------------------------------------===##
+##
+## This source file is part of the Swift.org open source project
+##
+## Copyright (c) 2024 Apple Inc. and the Swift project authors
+## Licensed under Apache License v2.0 with Runtime Library Exception
+##
+## See https://swift.org/LICENSE.txt for license information
+## See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
+##
+##===----------------------------------------------------------------------===##
+
+set -euo pipefail
+
+log() { printf -- "** %s\n" "$*" >&2; }
+error() { printf -- "** ERROR: %s\n" "$*" >&2; }
+fatal() { error "$@"; exit 1; }
+
+UNACCEPTABLE_WORD_LIST="blacklist whitelist slave master sane sanity insane insanity kill killed killing hang hung hanged hanging"
+
+unacceptable_language_lines=
+if [[ -f .unacceptablelanguageignore ]]; then
+    log "Found for unacceptable file..."
+    log "Checking for unacceptable language..."
+    unacceptable_language_lines=$(tr '\n' '\0' < .unacceptablelanguageignore | xargs -0 -I% printf '":(exclude)%" '| xargs git grep -i -I -w -H -n --column -E "${UNACCEPTABLE_WORD_LIST// /|}" | grep -v "ignore-unacceptable-language") || true | /usr/bin/paste -s -d " " -
+else
+    log "Checking for unacceptable language..."
+    unacceptable_language_lines=$(git grep -i -I -w -H -n --column -E "${UNACCEPTABLE_WORD_LIST// /|}" | grep -v "ignore-unacceptable-language") || true | /usr/bin/paste -s -d " " -
+fi
+
+if [ -n "${unacceptable_language_lines}" ]; then
+    fatal " ❌ Found unacceptable language:
+${unacceptable_language_lines}
+"
+fi
+
+log "✅ Found no unacceptable language."