diff --git a/components/layout/NavLinks.tsx b/components/layout/NavLinks.tsx
index 4364eda..a11295c 100644
--- a/components/layout/NavLinks.tsx
+++ b/components/layout/NavLinks.tsx
@@ -6,11 +6,7 @@ import { usePathname } from 'next/navigation'
 import { ExternalLink } from '@/components/ui/ExternalLink'
 import { navItems } from '@/components/layout/navItems'
 
-type NavLinksProps = {
-  gitOriginUrl: string | null
-}
-
-export function NavLinks({ gitOriginUrl }: NavLinksProps) {
+export function NavLinks() {
   const pathname = usePathname()
 
   const isActive = (href: string) => {
@@ -30,11 +26,7 @@ export function NavLinks({ gitOriginUrl }: NavLinksProps) {
     >
       {item.isExternal ? (
         <ExternalLink
-          href={
-            item.href.includes('{gitOriginUrl}')
-              ? item.href.replace('{gitOriginUrl}', gitOriginUrl ?? '')
-              : item.href
-          }
+          href={item.href}
           className="flex items-center gap-2 px-2 py-1 hover:no-underline focus:no-underline"
         >
           {item.icon}
diff --git a/components/layout/Sidebar.tsx b/components/layout/Sidebar.tsx
index e522693..f86f8a3 100644
--- a/components/layout/Sidebar.tsx
+++ b/components/layout/Sidebar.tsx
@@ -42,7 +42,7 @@ export async function Sidebar() {
             <span>{metadata.title!.toString()}</span>
           </h2>
           <ul className="space-y-2">
-            <NavLinks gitOriginUrl={gitOriginUrl} />
+            <NavLinks />
           </ul>
         </div>
         <div className="mt-auto flex gap-4 mx-auto">
diff --git a/components/layout/navItems.tsx b/components/layout/navItems.tsx
index 5f3d512..aa99c81 100644
--- a/components/layout/navItems.tsx
+++ b/components/layout/navItems.tsx
@@ -20,10 +20,14 @@ export const navItems: NavItem[] = [
     icon: <Rss className={navIconsClassName} />,
     isExternal: true,
   },
-  {
-    href: '{gitOriginUrl}',
-    label: 'Source Code',
-    icon: <GitBranch className={navIconsClassName} />,
-    isExternal: true,
-  },
+  ...(process.env.GIT_ORIGIN_URL
+    ? [
+        {
+          href: process.env.GIT_ORIGIN_URL,
+          label: 'Source Code',
+          icon: <GitBranch className={navIconsClassName} />,
+          isExternal: true,
+        },
+      ]
+    : []),
 ]
diff --git a/next.config.ts b/next.config.ts
index f885e1d..985069c 100644
--- a/next.config.ts
+++ b/next.config.ts
@@ -4,6 +4,10 @@ const nextConfig: NextConfig = {
   images: {
     qualities: [75, 100],
   },
+  env: {
+    GIT_COMMIT_HASH: process.env.GIT_COMMIT_HASH,
+    GIT_ORIGIN_URL: process.env.GIT_ORIGIN_URL,
+  },
 }
 
 export default nextConfig
diff --git a/nixpacks.toml b/nixpacks.toml
index e6ec59c..8ad5b72 100644
--- a/nixpacks.toml
+++ b/nixpacks.toml
@@ -1,2 +1,2 @@
 [phases.setup]
-aptPkgs = ["libnss3", "libatk1.0-0", "libatk-bridge2.0-0", "libcups2", "libgbm1", "libasound2t64", "libpangocairo-1.0-0", "libxss1", "libgtk-3-0", "libxshmfence1", "libglu1", "chromium", "unzip", "curl", "wget", "git"]
\ No newline at end of file
+aptPkgs = ["libnss3", "libatk1.0-0", "libatk-bridge2.0-0", "libcups2", "libgbm1", "libasound2t64", "libpangocairo-1.0-0", "libxss1", "libgtk-3-0", "libxshmfence1", "libglu1", "chromium", "unzip", "curl", "wget"]
\ No newline at end of file
diff --git a/utils/git.ts b/utils/git.ts
index d011ebc..dd20d69 100644
--- a/utils/git.ts
+++ b/utils/git.ts
@@ -1,53 +1,55 @@
-import { exec } from 'child_process'
-
 /**
- * Get the current Git commit hash.
- * @returns The current Git commit hash as a string, or null if an error occurs.
+ * Get the current git commit hash.
+ * @returns The current git commit hash, or null if it cannot be determined.
  */
 export async function getGitCommitHash(): Promise<string | null> {
-  try {
-    const commitHash = (await new Promise((resolve, reject) => {
-      exec('git rev-parse HEAD', (error, stdout) => {
-        if (error) {
-          reject(error)
-        } else {
-          resolve(stdout.toString().trim())
-        }
-      })
-    })) as string
+  if (process.env.GIT_COMMIT_HASH) {
+    return process.env.GIT_COMMIT_HASH
+  }
 
-    return commitHash
-  } catch (error) {
-    console.error('Error getting Git commit hash:', error)
+  try {
+    const { exec } = await import('child_process')
+    const hash = await new Promise<string>((res, rej) => {
+      exec('git rev-parse HEAD', (err, stdout) => (err ? rej(err) : res(stdout.trim())))
+    })
+    return hash
+  } catch {
     return null
   }
 }
 
 /**
- * Get the Git origin URL.
- * @returns The Git origin URL as a string, or null if an error occurs.
+ * Get the git origin URL.
+ * @returns The git origin URL, or null if it cannot be determined.
  */
 export async function getGitOriginUrl(): Promise<string | null> {
+  const envUrl = process.env.GIT_ORIGIN_URL
+  if (envUrl) return normalizeGitUrl(envUrl)
+
   try {
-    const originUrl = (await new Promise((resolve, reject) => {
-      exec('git config --get remote.origin.url', (error, stdout) => {
-        if (error) {
-          reject(error)
-        } else {
-          resolve(stdout.toString().trim())
-        }
-      })
-    })) as string
-
-    if (originUrl.startsWith('ssh://')) {
-      const httpsUrl = originUrl.replace(/^ssh:\/\/git@/, 'https://').replace(/\.git$/, '')
-      const urlWithoutPort = httpsUrl.replace(/:\d+/, '')
-      return urlWithoutPort
-    }
-
-    return originUrl
-  } catch (error) {
-    console.error('Error getting Git origin URL:', error)
+    const { exec } = await import('child_process')
+    const url = await new Promise<string>((res, rej) => {
+      exec('git config --get remote.origin.url', (err, stdout) =>
+        err ? rej(err) : res(stdout.trim()),
+      )
+    })
+    return normalizeGitUrl(url)
+  } catch {
     return null
   }
 }
+
+/**
+ * Normalize a git URL to a standard format.
+ * @param url The git URL to normalize.
+ * @returns The normalized git URL.
+ */
+function normalizeGitUrl(url: string): string {
+  if (url.startsWith('ssh://')) {
+    return url
+      .replace(/^ssh:\/\/git@/, 'https://')
+      .replace(/\.git$/, '')
+      .replace(/:\d+/, '')
+  }
+  return url
+}