diff --git a/projects/Advanced-Labs-in-Compilers.md b/projects/Advanced-Labs-in-Compilers.md
index 4e90bd7..5bef45a 100644
--- a/projects/Advanced-Labs-in-Compilers.md
+++ b/projects/Advanced-Labs-in-Compilers.md
@@ -17,3 +17,4 @@
 
 - [PostGuard](https://github.com/post-guard/Canon) (C#, Pascal-S 到 C 的编译器)
 - [RowletQwQ & JollyCorivuG & Mono312 & zjsycwmrbig & zhiruozzy](https://github.com/RowletQwQ/BUPT-PASCC) (C++, Pascal-S 到 C/RISC-V 的编译器)
+- [Nerlci & 3DRX & weiguang1 & daixinwang & 11BugMaker](https://github.com/Nerlci/passcal) (ANTLR4 & C++ & LLVM, Pascal-S 编译器)
\ No newline at end of file
diff --git a/projects/Advanced-Labs-in-Database.md b/projects/Advanced-Labs-in-Database.md
index 410f4b8..d092da8 100644
--- a/projects/Advanced-Labs-in-Database.md
+++ b/projects/Advanced-Labs-in-Database.md
@@ -2,4 +2,8 @@
 
 ### 2017级 - 学生成绩管理系统
 
-* [Jason210314](https://github.com/Jason210314/db_course_design_backend) (Golang & gin & MySql)
\ No newline at end of file
+* [Jason210314](https://github.com/Jason210314/db_course_design_backend) (Golang & gin & MySql)
+
+### 2021级 - 自选课题
+
+* [Nerlci & weiguang1 & daixinwang & LJJhub & yel1low](https://github.com/Nerlci/bumptyoj) (Node.js & Vue.js，OJ系统)
\ No newline at end of file
diff --git a/projects/Formal-Language.md b/projects/Formal-Language.md
index b735890..422dc74 100644
--- a/projects/Formal-Language.md
+++ b/projects/Formal-Language.md
@@ -9,6 +9,7 @@
 - [PostGuard](https://github.com/post-guard/NFA2DFA) (Electron & Vue.js)
 - [gzy](https://github.com/112292454/homework/blob/master/%E5%AE%9E%E9%AA%8C%E4%B8%80-2021211183.zip)(java)
 - [YangChen-pro](https://github.com/YangChen-pro/bupt-assignments/tree/main/2nd%20year%20of%20BUPT/Second%20semester/Formal%20Languages%20and%20Automata/lab1_NFA%E8%BD%AC%E5%8C%96%E4%B8%BADFA)(c++)
+- [Nerlci](https://github.com/Nerlci/nfa2dfa)(Pythoon)
 
 ### 设计上下文无关文法的变换算法
 
diff --git a/projects/Program-Practice.md b/projects/Program-Practice.md
index 91e5045..8f7035c 100644
--- a/projects/Program-Practice.md
+++ b/projects/Program-Practice.md
@@ -22,4 +22,5 @@
 * [ProgrameThinking](https://github.com/ProgrameThinking/robot_dsl):(rust)
 * [jackfiled](https://github.com/jackfiled/Katheryne): (C#)
 * [rand-fly](https://github.com/rand-fly/bupt_work_collection/tree/main/ChattyCat): (Typescript)
-* [ye-rm](https://github.com/ye-rm/MyDSL): (Go)
\ No newline at end of file
+* [ye-rm](https://github.com/ye-rm/MyDSL): (Go)
+* [Nerlci](https://github.com/Nerlci/dialogik): (Kotlin)
\ No newline at end of file
diff --git a/projects/Software-Engineering.md b/projects/Software-Engineering.md
index 238bd56..5169c79 100644
--- a/projects/Software-Engineering.md
+++ b/projects/Software-Engineering.md
@@ -37,4 +37,5 @@
 ### 2021级 - 廉价酒店管理系统
 
 * [PostGuard](https://github.com/post-guard/Martina) (C# & ASP.NET Core & React)
-* [Guo-Chenxu & hvinci & Rablady & cky00493 & joule2003](https://github.com/Guo-Chenxu/hotel-backend) (Java & Spring Boot & Vue)
\ No newline at end of file
+* [Guo-Chenxu & hvinci & Rablady & cky00493 & joule2003](https://github.com/Guo-Chenxu/hotel-backend) (Java & Spring Boot & Vue)
+* [Nerlci & 3DRX & weiguang1 & daixinwang](https://github.com/Nerlci/hotel_management) (Node.js & React)
\ No newline at end of file