diff --git a/.envrc b/.envrc
new file mode 100644
index 0000000..1bbfeef
--- /dev/null
+++ b/.envrc
@@ -0,0 +1,4 @@
+if ! has nix_direnv_version || ! nix_direnv_version 2.1.0; then
+  source_url "https://raw.githubusercontent.com/nix-community/nix-direnv/2.1.0/direnvrc" "sha256-FAT2R9yYvVg516v3LiogjIc8YfsbWbMM/itqWsm5xTA="
+fi
+use flake
diff --git a/.github/workflows/dagger.yaml b/.github/workflows/dagger.yaml
new file mode 100644
index 0000000..d8bd946
--- /dev/null
+++ b/.github/workflows/dagger.yaml
@@ -0,0 +1,41 @@
+name: Dagger
+
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+
+jobs:
+  test:
+    name: Test
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        go: ['1.14', '1.15', '1.16', '1.17', '1.18']
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Dagger
+        uses: dagger/dagger-for-github@v3
+        with:
+          cmds: |
+            project update
+            do check test go ${{ matrix.go }}
+
+  lint:
+    name: Lint
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Dagger
+        uses: dagger/dagger-for-github@v3
+        with:
+          cmds: |
+            project update
+            do check lint
diff --git a/.gitignore b/.gitignore
index 373715a..39d3e11 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
+/.direnv/
 /tmp/
 /vendor/
 
diff --git a/Taskfile.yaml b/Taskfile.yaml
new file mode 100644
index 0000000..7ba6546
--- /dev/null
+++ b/Taskfile.yaml
@@ -0,0 +1,14 @@
+version: '3'
+
+tasks:
+  check:
+    cmds:
+      - dagger do check
+
+  lint:
+    cmds:
+      - dagger do check lint
+
+  fmt:
+    cmds:
+      - golangci-lint run --fix
diff --git a/cue.mod/.gitignore b/cue.mod/.gitignore
new file mode 100644
index 0000000..089b067
--- /dev/null
+++ b/cue.mod/.gitignore
@@ -0,0 +1,3 @@
+/gen/
+/pkg/
+/tmp/
diff --git a/cue.mod/dagger.mod b/cue.mod/dagger.mod
new file mode 100644
index 0000000..5f38a63
--- /dev/null
+++ b/cue.mod/dagger.mod
@@ -0,0 +1 @@
+github.com/sagikazarmark/dagger main
diff --git a/cue.mod/dagger.sum b/cue.mod/dagger.sum
new file mode 100644
index 0000000..4b81d6b
--- /dev/null
+++ b/cue.mod/dagger.sum
@@ -0,0 +1 @@
+github.com/sagikazarmark/dagger h1:tiyrgWTRtUgipmeZEaoN3y/ejlHHYI7pVSVTxmm/NWQ=
diff --git a/cue.mod/module.cue b/cue.mod/module.cue
new file mode 100644
index 0000000..859c833
--- /dev/null
+++ b/cue.mod/module.cue
@@ -0,0 +1 @@
+module: "emperror.dev/errors"
\ No newline at end of file
diff --git a/dagger.cue b/dagger.cue
new file mode 100644
index 0000000..36989a1
--- /dev/null
+++ b/dagger.cue
@@ -0,0 +1,56 @@
+package main
+
+import (
+	"dagger.io/dagger"
+
+	"universe.dagger.io/go"
+
+	"github.com/sagikazarmark/dagger/go/golangci"
+)
+
+dagger.#Plan & {
+	client: filesystem: ".": read: exclude: [
+		".github",
+		"bin",
+		"build",
+		"tmp",
+	]
+	// client: filesystem: "./build": write: contents: actions.build.debug.output
+	client: network: "unix:///var/run/docker.sock": connect: dagger.#Socket
+
+	actions: {
+		_source: client.filesystem["."].read.contents
+
+		check: {
+			test: {
+				"go": {
+					"1.14": _
+					"1.15": _
+					"1.16": _
+					"1.17": _
+					"1.18": _
+
+					[v=string]: go.#Test & {
+						source:  _source
+						name:    "go_test_\(v)"
+						package: "./..."
+
+						_image: go.#Image & {
+							version: v
+						}
+
+						input: _image.output
+						command: flags: "-race": true
+					}
+				}
+			}
+
+			lint: {
+				"golangci": golangci.#Lint & {
+					source:  _source
+					version: "1.46"
+				}
+			}
+		}
+	}
+}
diff --git a/flake.lock b/flake.lock
new file mode 100644
index 0000000..0f19413
--- /dev/null
+++ b/flake.lock
@@ -0,0 +1,84 @@
+{
+  "nodes": {
+    "flake-utils": {
+      "locked": {
+        "lastModified": 1652776076,
+        "narHash": "sha256-gzTw/v1vj4dOVbpBSJX4J0DwUR6LIyXo7/SuuTJp1kM=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "04c1b180862888302ddfb2e3ad9eaa63afc60cf8",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "gobin": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1652111277,
+        "narHash": "sha256-jxl+fhzykhPP708r+WMotsg8Bjti9fpRoh4KiwPJ7XM=",
+        "owner": "sagikazarmark",
+        "repo": "go-bin-flake",
+        "rev": "7520b0da6c41e9d698ff5b408688de426c0218ea",
+        "type": "github"
+      },
+      "original": {
+        "owner": "sagikazarmark",
+        "repo": "go-bin-flake",
+        "type": "github"
+      }
+    },
+    "goflake": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1653238580,
+        "narHash": "sha256-oY/LS2l70cLC58TQ+ByuJDSa6kYg+ka46bKqJItwSpA=",
+        "owner": "sagikazarmark",
+        "repo": "go-flake",
+        "rev": "1d00595d82d74ca0f3ba0cf8bd52bb42f3801b1d",
+        "type": "github"
+      },
+      "original": {
+        "owner": "sagikazarmark",
+        "repo": "go-flake",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1653407748,
+        "narHash": "sha256-g9puJaILRTb9ttlLQ7IehpV7Wcy0n+vs8LOFu6ylQcM=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "5ce6597eca7d7b518c03ecda57d45f9404b5e060",
+        "type": "github"
+      },
+      "original": {
+        "id": "nixpkgs",
+        "ref": "nixos-unstable",
+        "type": "indirect"
+      }
+    },
+    "root": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "gobin": "gobin",
+        "goflake": "goflake",
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}
diff --git a/flake.nix b/flake.nix
new file mode 100644
index 0000000..63b872f
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,62 @@
+{
+  description = "Drop-in replacement for the standard library errors package";
+
+  inputs = {
+    nixpkgs.url = "nixpkgs/nixos-unstable";
+    flake-utils.url = "github:numtide/flake-utils";
+    goflake.url = "github:sagikazarmark/go-flake";
+    goflake.inputs.nixpkgs.follows = "nixpkgs";
+    gobin.url = "github:sagikazarmark/go-bin-flake";
+    gobin.inputs.nixpkgs.follows = "nixpkgs";
+  };
+
+  outputs = { self, nixpkgs, flake-utils, goflake, gobin, ... }:
+    flake-utils.lib.eachDefaultSystem (
+      system:
+        let
+          pkgs = import nixpkgs {
+            inherit system;
+
+            overlays = [
+              goflake.overlay
+
+              (
+                final: prev: {
+                  golangci-lint = gobin.packages.${system}.golangci-lint-bin;
+                  dagger = prev.buildGo118Module rec {
+                    pname = "dagger";
+                    version = "0.2.12";
+
+                    src = prev.fetchFromGitHub {
+                      owner = "dagger";
+                      repo = "dagger";
+                      rev = "v${version}";
+                      sha256 = "sha256-t58+dfsf6A38RG4uT8SJPi07gkC9dGZo0WpVwN9N31k=";
+                    };
+
+                    vendorSha256 = "sha256-7YKuOApIw4SG39BLb4kh7ZuZjhCBduzKo3iS8v8KZZU=";
+
+                    proxyModule = true;
+
+                    subPackages = [
+                      "cmd/dagger"
+                    ];
+
+                    ldflags = [ "-s" "-w" "-X go.dagger.io/dagger/version.Revision=${version}" ];
+                  };
+                }
+              )
+            ];
+          };
+
+          buildDeps = with pkgs; [ git go_1_17 gnumake ];
+          devDeps = with pkgs; buildDeps ++ [
+            golangci-lint
+            gotestsum
+            dagger
+            go-task
+          ];
+        in
+          { devShell = pkgs.mkShell { buildInputs = devDeps; }; }
+    );
+}