diff --git a/devices/jykang/files/.ssh/authorized_keys b/devices/jykang/files/.ssh/authorized_keys
index fa12e86c..4c8b6b00 100644
--- a/devices/jykang/files/.ssh/authorized_keys
+++ b/devices/jykang/files/.ssh/authorized_keys
@@ -11,6 +11,7 @@ ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIF5bg5cayOLfnfUBJz8LeyaYfP41s9pIqUgXn6w9xtvR
 ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIBoDGk9HYphkngx2Ix/vef2ZntdVNK1kbS9pY8+TzI41 yxf
 ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIJi6O1Sf1BBV1dYyH1jcHiws+ntwVfV29+6Paq1CQaET hss
 ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIFlBxisj3sU9QC8UC5gX6sakf7G03ybbkmHtD2cybuZA qmx
+ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIAWU/OlrP8bJ5k7IqpIwUC1COuVsmrYVreW/ieEdPYdj ccy
 
 ssh-rsa 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 00@xmuhpc
 ssh-rsa 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 01@xmuhpc
diff --git a/devices/srv2/default.nix b/devices/srv2/default.nix
index be629214..9a257b05 100644
--- a/devices/srv2/default.nix
+++ b/devices/srv2/default.nix
@@ -86,6 +86,7 @@ inputs:
         "zqq" # 庄芹芹
         "zgq" # 希望能接好班
         "lly" # 这谁？
+        "ccy" # 陈超业
       ];
     };
   };
diff --git a/modules/user/ccy/id_ed25519.pub b/modules/user/ccy/id_ed25519.pub
new file mode 100644
index 00000000..4fd8a434
--- /dev/null
+++ b/modules/user/ccy/id_ed25519.pub
@@ -0,0 +1 @@
+ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIAWU/OlrP8bJ5k7IqpIwUC1COuVsmrYVreW/ieEdPYdj ccy
diff --git a/modules/user/default.nix b/modules/user/default.nix
index c577f775..10d6791d 100644
--- a/modules/user/default.nix
+++ b/modules/user/default.nix
@@ -37,6 +37,7 @@ inputs:
         qmx = 1023;
         yumieko = 1024;
         xly = 1025;
+        ccy = 1026;
         misskey-misskey = 2000;
         misskey-misskey-old = 2001;
         frp = 2002;
diff --git a/packages/hpcstat/share/keys/ccy b/packages/hpcstat/share/keys/ccy
new file mode 100644
index 00000000..4fd8a434
--- /dev/null
+++ b/packages/hpcstat/share/keys/ccy
@@ -0,0 +1 @@
+ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIAWU/OlrP8bJ5k7IqpIwUC1COuVsmrYVreW/ieEdPYdj ccy
diff --git a/packages/hpcstat/src/keys.cpp b/packages/hpcstat/src/keys.cpp
index 1ff3dc33..bc78e3e6 100644
--- a/packages/hpcstat/src/keys.cpp
+++ b/packages/hpcstat/src/keys.cpp
@@ -17,6 +17,7 @@ namespace hpcstat
     { "4C2HKaBqgAzhPLjH/BuQZOjGx85NEeUA+UkkWkRzl8k", { "yxf", "Xiaofang Ye" } },
     { "8jCEhKYtIVn4H69+fotWDFUYWHyiRN1+JCGeiDHaf5E", { "hss", "Shanshan He" } },
     { "SUoYlxc2OVSH5YJqptKhl5o1Q2TW+PG+bBvpXfHNITI", { "qmx", "Mingxuan Qiu" } },
+    { "gtibfPaDxwsV1q6kZbsNsy5TKL5rfLlK3fSM/fVQTAY", { "ccy", "Chaoye Chen" } },
     { "7bmG24muNsaAZkCy7mQ9Nf2HuNafmvUO+Hf1bId9zts", { "00", "Yaping Wu" } },
     { "dtx0QxdgFrXn2SYxtIRz43jIAH6rLgJidSdTvuTuews", { "01", "Jing Li" } },
     { "8crUO9u4JiVqw3COyjXfzZe87s6XZFhvi0LaY0Mv6bg", { "02", "Huahan Zhan" } },