diff --git a/conf.json b/conf.json
new file mode 100644
index 0000000..11c12c5
--- /dev/null
+++ b/conf.json
@@ -0,0 +1,48 @@
+{
+  "stages": [
+    {
+      "name": "cpplint",
+      "executor": {
+        "name": "sandbox",
+        "with": {
+          "default": {
+            "args": [
+              "bash",
+              "-c",
+              "cpplint src/*.cpp"
+            ],
+            "env": [
+              "PATH=/usr/bin:/bin:/usr/local/bin"
+            ],
+            "cpuLimit": 10000000000,
+            "memoryLimit": 104857600,
+            "procLimit": 50,
+            "copyInCwd": true,
+            "copyOut": [
+              "stdout",
+              "stderr"
+            ],
+            "stdin": {
+              "content": ""
+            },
+            "stdout": {
+              "name": "stdout",
+              "max": 65536
+            },
+            "stderr": {
+              "name": "stderr",
+              "max": 65536
+            }
+          }
+        }
+      },
+      "parser": {
+        "name": "cpplint",
+        "with": {
+          "score": 100,
+          "comment": "check done"
+        }
+      }
+    }
+  ]
+}
diff --git a/conf.toml b/conf.toml
deleted file mode 100644
index 4d3583a..0000000
--- a/conf.toml
+++ /dev/null
@@ -1,26 +0,0 @@
-skipGitea = true
-[[stages]]
-name = "cpplint"
-[stages.executor]
-name = "sandbox"
-[stages.executor.with.default]
-args = ["bash", "-c", "cpplint src/*.cpp"]
-env = ["PATH=/usr/bin:/bin:/usr/local/bin"]
-cpuLimit = 10_000_000_000
-memoryLimit = 104_857_600
-procLimit = 50
-copyInCwd = true
-copyOut = ["stdout", "stderr"]
-[stages.executor.with.default.stdin]
-content = ""
-[stages.executor.with.default.stdout]
-name = "stdout"
-max = 65_536
-[stages.executor.with.default.stderr]
-name = "stderr"
-max = 65_536
-[stages.parser]
-name = "cpplint"
-[stages.parser.with]
-score = 100
-comment = "check done"