diff --git a/joj3_config_generator/convert.py b/joj3_config_generator/convert.py
index 98ea255..ca222b0 100644
--- a/joj3_config_generator/convert.py
+++ b/joj3_config_generator/convert.py
@@ -4,6 +4,8 @@ from joj3_config_generator.lib.task import (
     fix_diff,
     fix_keyword,
     fix_result_detail,
+    get_conf_stage,
+    get_executorWithConfig,
 )
 from joj3_config_generator.models import (
     Cmd,
@@ -22,7 +24,6 @@ from joj3_config_generator.models import (
 
 def convert(repo_conf: Repo, task_conf: Task) -> ResultConfig:
     # Create the base ResultConf object
-    # FIXME: wrap things in functions
     result_conf = ResultConfig(
         name=task_conf.task,
         # TODO: specify the exact folder difference
@@ -39,62 +40,11 @@ def convert(repo_conf: Repo, task_conf: Task) -> ResultConfig:
     # Construct healthcheck stage
     healthcheck_stage = getHealthcheckConfig(repo_conf, task_conf)
     result_conf.stage.stages.append(healthcheck_stage)
-    cached = []
+    cached: list[str] = []
     # Convert each stage in the task configuration
     for task_stage in task_conf.stages:
-        file_import = (
-            task_stage.files.import_
-            if hasattr(task_stage, "files")
-            and hasattr(task_stage.files, "import_")
-            and (task_stage.files is not None)
-            and (task_stage.files.import_ is not None)
-            else []
-        )
-        copy_in_files = [file for file in file_import if (file not in cached)]
-        file_export = (
-            task_stage.files.export
-            if hasattr(task_stage, "files")
-            and hasattr(task_stage.files, "export")
-            and (task_stage.files is not None)
-            else []
-        )
-        # TODO: the global limit field
-        executor_with_config = ExecutorWithConfig(
-            default=Cmd(
-                args=(
-                    task_stage.command.split() if task_stage.command is not None else []
-                ),
-                copy_in={
-                    file: CmdFile(src=f"/home/tt/.config/joj/{file}")
-                    for file in copy_in_files
-                },
-                copy_in_cached={file: file for file in copy_in_files},
-                copy_out_cached=file_export if file_export is not None else [],
-            ),
-            cases=[],  # You can add cases if needed
-        )
-        if file_export is not None:
-            for file in file_export:
-                if file not in cached:
-                    cached.append(file)
-        conf_stage = Stage(
-            name=task_stage.name if task_stage.name is not None else "",
-            # TODO: we may have cq in future
-            group=(
-                "joj"
-                if (task_stage.name is not None) and ("judge" in task_stage.name)
-                else None
-            ),
-            executor=ExecutorConfig(
-                name="sandbox",
-                with_=executor_with_config,
-            ),
-            parsers=(
-                [ParserConfig(name=parser, with_={}) for parser in task_stage.parsers]
-                if task_stage.parsers is not None
-                else []
-            ),
-        )
+        executor_with_config, cached = get_executorWithConfig(task_stage, cached)
+        conf_stage = get_conf_stage(task_stage, executor_with_config)
         conf_stage = fix_result_detail(task_stage, conf_stage)
         conf_stage = fix_comment(task_stage, conf_stage)
         conf_stage = fix_keyword(task_stage, conf_stage)
diff --git a/joj3_config_generator/lib/task.py b/joj3_config_generator/lib/task.py
index 35aa92b..6ff56d7 100644
--- a/joj3_config_generator/lib/task.py
+++ b/joj3_config_generator/lib/task.py
@@ -1,10 +1,112 @@
+from typing import Tuple
+
 import rtoml
 
-from joj3_config_generator.models.result import CmdFile, OptionalCmd
+from joj3_config_generator.models import (
+    ExecutorConfig,
+    ExecutorWithConfig,
+    ParserConfig,
+)
+from joj3_config_generator.models.result import Cmd, CmdFile, OptionalCmd
 from joj3_config_generator.models.result import Stage as ResultStage
 from joj3_config_generator.models.task import Stage as TaskStage
 
 
+def get_conf_stage(
+    task_stage: TaskStage, executor_with_config: ExecutorWithConfig
+) -> ResultStage:
+    conf_stage = ResultStage(
+        name=task_stage.name if task_stage.name is not None else "",
+        # TODO: we may have cq in future
+        group=(
+            "joj"
+            if (task_stage.name is not None) and ("judge" in task_stage.name)
+            else None
+        ),
+        executor=ExecutorConfig(
+            name="sandbox",
+            with_=executor_with_config,
+        ),
+        parsers=(
+            [ParserConfig(name=parser, with_={}) for parser in task_stage.parsers]
+            if task_stage.parsers is not None
+            else []
+        ),
+    )
+    return conf_stage
+
+
+def get_executorWithConfig(
+    task_stage: TaskStage, cached: list[str]
+) -> Tuple[ExecutorWithConfig, list[str]]:
+    file_import = (
+        task_stage.files.import_
+        if hasattr(task_stage, "files")
+        and hasattr(task_stage.files, "import_")
+        and (task_stage.files is not None)
+        and (task_stage.files.import_ is not None)
+        else []
+    )
+    copy_in_files = [file for file in file_import if (file not in cached)]
+    file_export = (
+        task_stage.files.export
+        if hasattr(task_stage, "files")
+        and hasattr(task_stage.files, "export")
+        and (task_stage.files is not None)
+        else []
+    )
+    executor_with_config = ExecutorWithConfig(
+        default=Cmd(
+            args=(task_stage.command.split() if task_stage.command is not None else []),
+            copy_in={
+                file: CmdFile(src=f"/home/tt/.config/joj/{file}")
+                for file in copy_in_files
+            },
+            copy_in_cached={file: file for file in copy_in_files},
+            copy_out_cached=file_export if file_export is not None else [],
+            cpu_limit=(
+                task_stage.limit.cpu * 1_000_000_000
+                if task_stage.limit is not None and task_stage.limit.cpu is not None
+                else 4 * 1_000_000_000
+            ),
+            clock_limit=(
+                2 * task_stage.limit.cpu * 1_000_000_000
+                if task_stage.limit is not None and task_stage.limit.cpu is not None
+                else 8 * 1_000_000_000
+            ),
+            memory_limit=(
+                task_stage.limit.mem * 1_024 * 1_024
+                if task_stage.limit is not None and task_stage.limit.mem is not None
+                else 4 * 1_024 * 1_024
+            ),
+            stderr=CmdFile(
+                name="stderr",
+                max=(
+                    task_stage.limit.stderr * 1_000_000_000
+                    if task_stage.limit is not None
+                    and task_stage.limit.stderr is not None
+                    else 4 * 1_024 * 1_024
+                ),
+            ),
+            stdout=CmdFile(
+                name="stdout",
+                max=(
+                    task_stage.limit.stdout * 1_000_000_000
+                    if task_stage.limit is not None
+                    and task_stage.limit.stdout is not None
+                    else 4 * 1_024 * 1_024
+                ),
+            ),
+        ),
+        cases=[],  # You can add cases if needed
+    )
+    if file_export is not None:
+        for file in file_export:
+            if file not in cached:
+                cached.append(file)
+    return (executor_with_config, cached)
+
+
 def fix_keyword(task_stage: TaskStage, conf_stage: ResultStage) -> ResultStage:
     keyword_parser = ["clangtidy", "keyword", "cppcheck"]  # TODO: may add cpplint
     if task_stage.parsers is not None: