diff --git a/.gitmodules b/.gitmodules
index 51d3ee3c..45907e2c 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,4 +1,4 @@
 [submodule "pylsp"]
 	path = pylsp
-	url = git@github.com:Hoblovski/python-lsp-server.git
+	url = https://github.com/Hoblovski/python-lsp-server.git
 	branch = abc
diff --git a/README.md b/README.md
index 867c06ef..4e363f0c 100644
--- a/README.md
+++ b/README.md
@@ -117,13 +117,14 @@ $ exit
 
 ABCoder currently supports the following languages:
 
-| Language | Parser      | Writer      |
-| -------- | ----------- | ----------- |
-| Go       | ✅          | ✅          |
-| Rust     | ✅          | Coming Soon |
-| C        | ✅          | Coming Soon |
-| Python   | ✅          | Coming Soon |
-| TypeScript | ✅        | Coming Soon |
+| Language | Parser | Writer      |
+| -------- | ------ | ----------- |
+| Go       | ✅      | ✅           |
+| Rust     | ✅      | Coming Soon |
+| C        | ✅      | Coming Soon |
+| Python   | ✅      | Coming Soon |
+| JS/TS    | ✅      | Coming Soon |
+| Java     | ✅      | Coming Soon |
 
 
 # Getting Involved
diff --git a/docs/lsp-installation-en.md b/docs/lsp-installation-en.md
index 13b6862f..4046e464 100644
--- a/docs/lsp-installation-en.md
+++ b/docs/lsp-installation-en.md
@@ -4,12 +4,14 @@ To parse dependencies between symbols in a repository, the abcoder parser requir
 
 The mapping between languages and language servers is as follows:
 
-| Language | Language Server                        | Executable      |
-| -------- | -------------------------              | --------------- |
-| Go       | Does not use LSP, uses built-in parser | /               |
-| Rust     | rust-analyzer                          | rust-analyzer   |
-| Python   | (Modified) python-lsp-server           | pylsp           |
-| C        | clangd-18                              | clangd-18       |
+| Language   | Language Server                                                    | Essential Environment |
+| ---------- | ------------------------------------------------------------------ | --------------------- |
+| Go         | NA                                                                 | golang 1.23+          |
+| TypeScript | NA                                                                 | node.js 20+           |
+| Rust       | rust-analyzer (official)                                           | rust-toolchain        |
+| Python     | pylsp ([modified](https://github.com/Hoblovski/python-lsp-server)) | Python 3.9+           |
+| C          | clangd-18 (official)                                               | clang 18+             |
+| Java       | eclipse-jdtls (official)                                           | java 17+              |
 
 Ensure the corresponding executable is in PATH before running abcoder.
 
diff --git a/docs/lsp-installation-zh.md b/docs/lsp-installation-zh.md
index 5e9d7553..f3503fbd 100644
--- a/docs/lsp-installation-zh.md
+++ b/docs/lsp-installation-zh.md
@@ -4,12 +4,14 @@
 
 语言和 language server 的对应关系如下
 
-| 语言   | Language server              | 可执行文件    |
-| ---    | ---                          | ---           |
-| Go     | 不使用 LSP，使用内置 parser  | /             |
-| Rust   | rust-analyzer                | rust-analyzer |
-| Python | (修改后的) python-lsp-server | pylsp         |
-| C      | clangd-18                    | clangd-18     |
+| 语言       | Language server                                                | 必要运行环境   |
+| ---------- | -------------------------------------------------------------- | -------------- |
+| Go         | NA                                                             | golang 1.23+   |
+| TypeScript | NA                                                             | node.js 20+    |
+| Rust       | rust-analyzer (官方)                                           | rust-toolchain |
+| Python     | pylsp ([修改](https://github.com/Hoblovski/python-lsp-server)) | python 3.9+    |
+| C          | clangd-18 (官方)                                               | clang 18+      |
+| Java       | eclipse-jdtls (官方)                                           | java 17+       |
 
 按如下教程完成安装后，在运行 abcoder 前请确保 PATH 中有对应可执行文件
 
diff --git a/lang/parse.go b/lang/parse.go
index 7dcc22d5..ba7acd51 100644
--- a/lang/parse.go
+++ b/lang/parse.go
@@ -192,6 +192,8 @@ func installLanguageServer(language uniast.Language) (string, error) {
 		return cxx.InstallLanguageServer()
 	case uniast.Python:
 		return python.InstallLanguageServer()
+	case uniast.Rust:
+		return rust.InstallLanguageServer()
 	default:
 		return "", fmt.Errorf("auto installation not supported for language: %s", language)
 	}
diff --git a/lang/python/lib.go b/lang/python/lib.go
index 17b15a91..9b93288b 100644
--- a/lang/python/lib.go
+++ b/lang/python/lib.go
@@ -66,19 +66,14 @@ func InstallLanguageServer() (string, error) {
 	}
 	// git submodule init
 	log.Error("Installing pylsp...")
-	if err := exec.Command("git", "submodule", "init").Run(); err != nil {
-		log.Error("git submodule init failed: %v", err)
-		return "", err
-	}
-	// git submodule update
-	if err := exec.Command("git", "submodule", "update").Run(); err != nil {
-		log.Error("git submodule update failed: %v", err)
+	if err := exec.Command("git", "submodule", "update", "--remote", "--init", "-f").Run(); err != nil {
+		log.Error("git clone failed: %v", err)
 		return "", err
 	}
 	// python -m pip install -e projectRoot/pylsp
 	log.Error("Running `python3 -m pip install -e pylsp/` .\nThis might take some time, make sure the network connection is ok.")
-	if err := exec.Command("python3", "-m", "pip", "install", "-e", "pylsp/").Run(); err != nil {
-		log.Error("python -m pip install failed: %v", err)
+	if err := exec.Command("python3", "-m", "pip", "install", "--break-system-packages", "-e", "pylsp/").Run(); err != nil {
+		log.Error("python3 -m pip install failed: %v", err)
 		return "", err
 	}
 	if err := exec.Command("pylsp", "--version").Run(); err != nil {
diff --git a/lang/rust/repo.go b/lang/rust/repo.go
index 0bf2c041..21e69b7f 100644
--- a/lang/rust/repo.go
+++ b/lang/rust/repo.go
@@ -29,6 +29,18 @@ import (
 
 const MaxWaitDuration = 5 * time.Minute
 
+func InstallLanguageServer() (string, error) {
+	log.Info("Installing rust-analyzer...")
+	// check rustup exe exists
+	if _, err := exec.LookPath("rustup"); err != nil {
+		return "", fmt.Errorf("failed to find rustup, please install rustup first: https://rustup.rs")
+	}
+	if err := RunCmdInDir(".", "rustup", "component", "add", "rust-analyzer"); err != nil {
+		return "", fmt.Errorf("failed to install rust-analyzer: %w", err)
+	}
+	return "rust-analyzer", nil
+}
+
 func CheckRepo(repo string) (string, time.Duration) {
 	// NOTICE: open the Cargo.toml file is required for Rust projects
 	openfile := utils.FirstFile(repo, ".rs", filepath.Join(repo, "target"))
diff --git a/main.go b/main.go
index 83885554..762aa38b 100644
--- a/main.go
+++ b/main.go
@@ -57,10 +57,12 @@ Action:
    agent        run as an Agent for all repo ASTs (*.json) in the specific directory. WIP: only support code-analyzing at present.
    version      print the version of abcoder
 Language:
+   go           for golang codes
    rust         for rust codes
    cxx          for c codes (cpp support is on the way)
-   go           for golang codes
    python       for python codes
+   ts           for typescript codes
+   js           for javascript codes
    java         for java codes
 `
 
diff --git a/version.go b/version.go
index cfba6b04..29c9c209 100644
--- a/version.go
+++ b/version.go
@@ -17,5 +17,5 @@
 package main
 
 const (
-	Version = "0.1.0"
+	Version = "0.2.0"
 )