diff --git a/backend/src/api.ts b/backend/src/api.ts
index b35f03c..9142ce2 100644
--- a/backend/src/api.ts
+++ b/backend/src/api.ts
@@ -24,6 +24,14 @@ export class Session {
         monacoLanguage: this.config.monacoLang,
       })
     );
+    if (this.config.template) {
+      this.ws.send(
+        JSON.stringify({
+          event: "insertTemplate",
+          template: this.config.template,
+        })
+      );
+    }
     this.run().catch(console.error);
     ws.on("message", this.handleClientMessage);
   }
@@ -58,15 +66,8 @@ export class Session {
         break;
     }
   };
-  parseCmdline = (cmdline: string[] | string) => {
-    if (typeof cmdline === "string") {
-      return ["bash", "-c", cmdline];
-    } else {
-      return cmdline;
-    }
-  };
   run = async () => {
-    const { repl, file, suffix, run } = this.config;
+    const { repl, file, suffix, compile, run } = this.config;
     if (this.term.pty) {
       this.term.pty.kill();
       this.term.live = false;
@@ -81,8 +82,10 @@ export class Session {
         }
       })
     );
-    let cmdline: string[];
-    if (this.code || !repl) {
+    let cmdline: string;
+    if (!run) {
+      cmdline = `echo 'Support for ${this.config.name} is not yet implemented.`;
+    } else if (this.code) {
       let code = this.code;
       if (suffix) {
         code += suffix;
@@ -96,12 +99,17 @@ export class Session {
           }
         })
       );
-      cmdline = this.parseCmdline(run);
+      cmdline = run;
+      if (compile) {
+        cmdline = compile + " && " + run;
+      }
+    } else if (repl) {
+      cmdline = repl;
     } else {
-      cmdline = this.parseCmdline(repl);
+      return;
     }
     const term = {
-      pty: pty.spawn(cmdline[0], cmdline.slice(1), {
+      pty: pty.spawn("bash", ["-c", cmdline], {
         name: "xterm-color",
         cwd: tmpdir,
         env: process.env,
diff --git a/backend/src/langs.ts b/backend/src/langs.ts
index 3978b15..1a34cfb 100644
--- a/backend/src/langs.ts
+++ b/backend/src/langs.ts
@@ -1,103 +1,116 @@
 export interface LangConfig {
-  repl?: string[];
+  name: string;
+  monacoLang: string;
+  repl?: string;
   file?: string;
   prefix?: string;
   suffix?: string;
-  run?: string[] | string;
-  monacoLang: string;
-  name: string;
+  compile?: string;
+  run?: string;
+  template?: string;
 }
 
-export const langs = {
+export const langs: { [key: string]: LangConfig } = {
   bash: {
-    repl: ["bash"],
-    file: "main.bash",
-    run: ["bash", "--rcfile", "main.bash"],
     name: "Bash",
     monacoLang: "shell",
+    repl: "bash",
+    file: "main.bash",
+    run: "bash --rcfile main.bash",
+    template: 'echo "Hello, world!"',
   },
   c: {
     name: "C",
     monacoLang: "c",
+    file: "main.c",
+    compile: "clang -Wall -Wextra main.c -o main",
+    run: "./main",
+    template: `#include <stdio.h>
+
+int main() {
+  printf("Hello, world!\\n");
+  return 0;
+}
+`,
   },
   "c++": {
     name: "C++",
     monacoLang: "cpp",
   },
   clojure: {
-    repl: ["clojure"],
     name: "Clojure",
     monacoLang: "clojure",
+    repl: "clojure",
   },
   emacs: {
-    repl: ["emacs"],
     name: "Emacs Lisp",
     monacoLang: "plaintext",
+    repl: "emacs",
   },
   fish: {
-    repl: ["env", "SHELL=/usr/bin/fish", "fish"],
     name: "Fish",
     monacoLang: "plaintext",
+    repl: "SHELL=/usr/bin/fish fish",
   },
   go: {
     name: "Go",
     monacoLang: "go",
   },
   haskell: {
-    repl: ["ghci"],
-    file: "Main.hs",
-    run: ["ghci", "Main.hs"],
     name: "Haskell",
     monacoLang: "plaintext",
+    repl: "ghci",
+    file: "Main.hs",
+    run: "ghci Main.hs",
   },
   java: {
     name: "Java",
     monacoLang: "java",
   },
   julia: {
-    repl: ["julia"],
     name: "Julia",
     monacoLang: "plaintext",
+    repl: "julia",
   },
   lua: {
-    repl: ["lua"],
     name: "Lua",
     monacoLang: "lua",
+    repl: "lua",
   },
   nodejs: {
-    repl: ["node"],
+    name: "Node.js",
+    monacoLang: "javascript",
+    repl: "node",
     file: "main.js",
     suffix: '\n;require("repl").start();',
     run: "node main.js",
-    name: "Node.js",
-    monacoLang: "javascript",
   },
   python: {
-    repl: ["python3", "-u"],
-    file: "main.py",
-    run: ["python3", "-u", "-i", "main.py"],
     name: "Python",
     monacoLang: "python",
+    repl: "python3 -u",
+    file: "main.py",
+    run: "python3 -u -i main.py",
   },
   ruby: {
-    repl: ["irb"],
     name: "Ruby",
     monacoLang: "ruby",
+    repl: "irb",
   },
   rust: {
     name: "Rust",
     monacoLang: "rust",
   },
   vim: {
-    repl: ["vim"],
     name: "Vimscript",
     monacoLang: "plaintext",
+    repl: "vim",
   },
   zsh: {
-    repl: ["env", "SHELL=/usr/bin/zsh", "zsh"],
-    file: ".zshrc",
-    run: ["env", "ZDOTDIR=.", "zsh"],
     name: "Zsh",
     monacoLang: "shell",
+    repl: "SHELL=/usr/bin/zsh zsh",
+    file: ".zshrc",
+    run: "ZDOTDIR=. zsh",
   },
 };
diff --git a/frontend/src/app.ts b/frontend/src/app.ts
index 206180b..930755c 100644
--- a/frontend/src/app.ts
+++ b/frontend/src/app.ts
@@ -17,6 +17,8 @@ window.addEventListener("resize", () => fitAddon.fit());
 const initialRetryDelayMs = 200;
 let retryDelayMs = initialRetryDelayMs;
 
+let allowInsertingTemplate = true;
+
 function tryConnect() {
   console.log("Connecting to server...");
   socket = new WebSocket(
@@ -57,6 +59,15 @@ function tryConnect() {
           message.monacoLanguage
         );
         return;
+      case "insertTemplate":
+        if (typeof message.template !== "string") {
+          console.error("Unexpected message from server:", message);
+          return;
+        }
+        if (allowInsertingTemplate) {
+          editor.getModel().setValue(message.template);
+        }
+        return;
       default:
         console.error("Unexpected message from server:", message);
         return;
@@ -91,6 +102,9 @@ const editor = monaco.editor.create(document.getElementById("editor"), {
   scrollbar: { verticalScrollbarSize: 0 },
 });
 window.addEventListener("resize", () => editor.layout());
+editor.onDidChangeModelContent(() => {
+  allowInsertingTemplate = false;
+});
 
 document.getElementById("runButton").addEventListener("click", () => {
   socket.send(JSON.stringify({ event: "runCode", code: editor.getValue() }));
diff --git a/scripts/docker-install.bash b/scripts/docker-install.bash
index 91b60ba..82f3f6a 100755
--- a/scripts/docker-install.bash
+++ b/scripts/docker-install.bash
@@ -38,6 +38,7 @@ bsdmainutils
 curl
 emacs-nox
 git
+lsof
 make
 man-db
 nano