diff --git a/src/chsrc-main.c b/src/chsrc-main.c
index 506cd2c..8b533c3 100644
--- a/src/chsrc-main.c
+++ b/src/chsrc-main.c
@@ -71,7 +71,20 @@
 #include "recipe/lang/Go.c"
 #include "recipe/lang/Java.c"
 
+#include "recipe/lang/Rust/common.h"
+  #include "recipe/lang/Rust/rustup.c"
+  #include "recipe/lang/Rust/Cargo.c"
 
+#include "recipe/lang/Dart/common.h"
+#include "recipe/lang/Dart/Pub.c"
+#include "recipe/lang/Dart/Flutter.c"
+
+#include "recipe/lang/Haskell.c"
+#include "recipe/lang/OCaml.c"
+#include "recipe/lang/R.c"
+#include "recipe/lang/Julia.c"
+#include "recipe/lang/NuGet.c"
+#include "recipe/lang/Clojure.c"
 
 #include "rawstr4c.h"
 
diff --git a/src/recipe/lang/Clojure.c b/src/recipe/lang/Clojure.c
index 4ec7825..b355b2a 100644
--- a/src/recipe/lang/Clojure.c
+++ b/src/recipe/lang/Clojure.c
@@ -19,7 +19,7 @@ pl_clojure_prelude ()
   chef_set_sous_chefs (this, 0);
   chef_set_contributors (this, 0);
 
-  chef_allow_local_mode (this, Can, NULL, NULL);
+  chef_allow_local_mode (this, FullyCan, NULL, NULL);
   chef_forbid_english(this);
   chef_allow_user_define(this);
 
diff --git a/src/recipe/lang/Dart/Flutter.c b/src/recipe/lang/Dart/Flutter.c
index 0336d02..21f90c0 100644
--- a/src/recipe/lang/Dart/Flutter.c
+++ b/src/recipe/lang/Dart/Flutter.c
@@ -2,8 +2,6 @@
  * SPDX-License-Identifier: GPL-3.0-or-later
  * ------------------------------------------------------------*/
 
-#define PL_Dart_Flutter_Speed_URL_Postfix "/flutter_infra_release/releases/stable/linux/flutter_linux_v1.0.0-stable.tar.xz"
-
 def_target(pl_dart_flutter);
 
 void
@@ -27,20 +25,15 @@ pl_dart_flutter_prelude (void)
   chef_allow_english(this);
   chef_allow_user_define(this);
 
-  chef_set_note ("2024-09-14: 不得不将Dart和Flutter拆分为两个Target，因为3家教育网镜像站给出的 Dart 和 Flutter 换源URL模式都不一样",
-                 "2024-09-14: Had to split Dart and Flutter into two Targets, because the 3 educational network mirror sites have different URL patterns for Dart and Flutter source switching");
-
   def_sources_begin()
-  {&upstream,      "https://storage.googleapis.com", "https://storage.googleapis.com" PL_Dart_Flutter_Speed_URL_Postfix},
-  {&FlutterCN,     "https://storage.flutter-io.cn",  DelegateToMirror},
-  {&Sjtug_Zhiyuan, "https://mirror.sjtu.edu.cn",     NULL }, /* 官方文档也没有给后缀，怀疑是否存在问题 */
-
-  {&Tuna,          "https://mirrors.tuna.tsinghua.edu.cn/flutter",
-                   "https://mirrors.tuna.tsinghua.edu.cn/flutter" PL_Dart_Flutter_Speed_URL_Postfix},
-
-  {&Nju,           "https://mirror.nju.edu.cn/flutter",
-                   "https://mirror.nju.edu.cn/flutter" PL_Dart_Flutter_Speed_URL_Postfix}
+  {&upstream,      "https://storage.googleapis.com", FeedByPrelude},
+  {&FlutterCN,     "https://storage.flutter-io.cn",  FeedByPrelude},
+  {&Sjtug_Zhiyuan, "https://mirror.sjtu.edu.cn",     FeedByPrelude }, /* 官方文档也没有给后缀，怀疑是否存在问题 */
+  {&Tuna,          "https://mirrors.tuna.tsinghua.edu.cn/flutter", FeedByPrelude},
+  {&Nju,           "https://mirror.nju.edu.cn/flutter", FeedByPrelude}
   def_sources_end()
+
+  chsrc_set_sources_speed_measure_url_with_postfix (this, "/flutter_infra_release/releases/stable/linux/flutter_linux_v1.0.0-stable.tar.xz");
 }
 
 
@@ -62,7 +55,7 @@ pl_dart_flutter_getsrc (char *option)
 void
 pl_dart_flutter_setsrc (char *option)
 {
-  chsrc_yield_source_and_confirm (pl_dart_flutter);
+  use_this_source(pl_dart_flutter);
 
   char *w = NULL;
   char *cmd = NULL;
diff --git a/src/recipe/lang/Dart/Pub.c b/src/recipe/lang/Dart/Pub.c
index a06aef6..34255e8 100644
--- a/src/recipe/lang/Dart/Pub.c
+++ b/src/recipe/lang/Dart/Pub.c
@@ -29,7 +29,7 @@ pl_dart_prelude (void)
   {&upstream,      "https://pub.dev",           FeedByPrelude},
   {&FlutterCN,     "https://pub.flutter-io.cn", FeedByPrelude},
   {&Sjtug_Zhiyuan, "https://mirror.sjtu.edu.cn/dart-pub", FeedByPrelude},
-  {&Tuna,          "https://mirrors.tuna.tsinghua.edu.cn/dart-pub", FeedByPrelude,
+  {&Tuna,          "https://mirrors.tuna.tsinghua.edu.cn/dart-pub", FeedByPrelude},
   {&Nju,           "https://mirror.nju.edu.cn/dart-pub", FeedByPrelude}
   def_sources_end()
 
@@ -51,7 +51,7 @@ pl_dart_getsrc (char *option)
 void
 pl_dart_setsrc (char *option)
 {
-  chsrc_yield_source_and_confirm (pl_dart);
+  use_this_source(pl_dart);
 
   char *w = NULL;
   char *cmd = NULL;
diff --git a/src/recipe/lang/Julia.c b/src/recipe/lang/Julia.c
index ee71479..a5ca313 100644
--- a/src/recipe/lang/Julia.c
+++ b/src/recipe/lang/Julia.c
@@ -23,8 +23,6 @@ pl_julia_prelude ()
   chef_allow_english(this);
   chef_allow_user_define(this);
 
-  chef_set_note ("Julia的换源可以通过两种方式: 1. 写入 startup.jl 2. 使用环境变量。我们采用第一种", NULL);
-
   def_sources_begin()
   {&upstream,         NULL, DelegateToUpstream},
   {&Pku,              "https://mirrors.pku.edu.cn/julia", DelegateToMirror},
diff --git a/src/recipe/lang/NuGet.c b/src/recipe/lang/NuGet.c
index bc3ebcb..a6effb9 100644
--- a/src/recipe/lang/NuGet.c
+++ b/src/recipe/lang/NuGet.c
@@ -23,8 +23,6 @@ pl_nuget_prelude ()
   chef_forbid_english(this);
   chef_forbid_user_define(this);
 
-  chef_set_note ("暂时未实现该换源功能，可参照 https://mirrors.huaweicloud.com/mirrorDetail/5ebf85de07b41baf6d0882ab?mirrorName=nuget&catalog=language", NULL);
-
   def_sources_begin()
   {&upstream,         "https://www.nuget.org/api/v3/", DelegateToUpstream},
   {&Huawei,           "https://mirrors.huaweicloud.com/repository/nuget/v3", DelegateToMirror}
@@ -39,6 +37,9 @@ pl_nuget_getsrc (char *option)
 }
 
 
+/**
+ * 暂时未实现该换源功能，可参照 https://mirrors.huaweicloud.com/mirrorDetail/5ebf85de07b41baf6d0882ab?mirrorName=nuget&catalog=language
+ */
 void
 pl_nuget_setsrc (char *option)
 {
diff --git a/src/recipe/lang/R.c b/src/recipe/lang/R.c
index 8579126..8166650 100644
--- a/src/recipe/lang/R.c
+++ b/src/recipe/lang/R.c
@@ -23,8 +23,7 @@ pl_r_prelude ()
   chef_forbid_english(this);
   chef_allow_user_define(this);
 
-  chef_set_note ("以下注释的，是不含有bioconductor的镜像站，我们在换cran的同时，也直接帮助用户换bioconductor", NULL);
-
+  // 以下注释的，是不含有bioconductor的镜像站，我们在换cran的同时，也直接帮助用户换bioconductor
   def_sources_begin()
   {&upstream,         NULL, DelegateToUpstream},
   {&Sjtug_Zhiyuan,    "https://mirrors.sjtug.sjtu.edu.cn/cran/",    DelegateToMirror},
@@ -65,7 +64,7 @@ pl_r_getsrc (char *option)
 void
 pl_r_setsrc (char *option)
 {
-  chsrc_yield_source_and_confirm (pl_r);
+  use_this_source(pl_r);
 
   char *bioconductor_url = xy_str_delete_suffix (xy_str_delete_suffix (source.url, "cran/"), "CRAN/");
   bioconductor_url = xy_2strjoin(bioconductor_url, "bioconductor");
diff --git a/src/recipe/lang/Rust/Cargo.c b/src/recipe/lang/Rust/Cargo.c
index 42c83b3..2a91573 100644
--- a/src/recipe/lang/Rust/Cargo.c
+++ b/src/recipe/lang/Rust/Cargo.c
@@ -25,9 +25,8 @@ pl_rust_cargo_prelude (void)
   chef_forbid_english (this);
   chef_allow_user_define(this);
 
-  chef_set_note ("以下都支持稀疏索引，我们换源时都将默认添加 `sparse+`。链接末尾的 `/` 不能缺少",
-                 "All sources support sparse index, we will add `sparse+` by default when changing sources. The trailing `/` in URLs cannot be missing");
 
+  // 以下都支持稀疏索引，我们换源时都将默认添加 `sparse+`。链接末尾的 `/` 不能缺少
   def_sources_begin()
   {&upstream,      "https://crates.io/", "https://crates.io/api/v1/crates/windows/0.58.0/download"},
   {&MirrorZ,       "https://mirrors.cernet.edu.cn/crates.io-index/",  DelegateToMirror},
diff --git a/src/recipe/lang/Rust/rustup.c b/src/recipe/lang/Rust/rustup.c
index 2b00cff..b9152a3 100644
--- a/src/recipe/lang/Rust/rustup.c
+++ b/src/recipe/lang/Rust/rustup.c
@@ -42,7 +42,7 @@ pl_rust_rustup_prelude (void)
   def_sources_end()
 
   // 20MB大小
-  chsrc_set_sources_speed_measure_url_with_postfix (this, "/dist/2025-06-26/cargo-1.88.0-x86_64-unknown-illumos.tar.gz")
+  chsrc_set_sources_speed_measure_url_with_postfix (this, "/dist/2025-06-26/cargo-1.88.0-x86_64-unknown-illumos.tar.gz");
 }