diff --git a/.changeset/plenty-candles-help.md b/.changeset/plenty-candles-help.md
new file mode 100644
index 0000000000..e7ddf8cb4f
--- /dev/null
+++ b/.changeset/plenty-candles-help.md
@@ -0,0 +1,21 @@
+---
+'astro': major
+---
+
+Removes support for Shiki custom language's `path` property. The language JSON file should be imported and passed to the option instead.
+
+```diff
+// astro.config.js
++ import customLang from './custom.tmLanguage.json'
+
+export default defineConfig({
+  markdown: {
+    shikiConfig: {
+      langs: [
+-       { path: './custom.tmLanguage.json' },
++       customLang,
+      ],
+    },
+  },
+})
+```
diff --git a/packages/astro/components/Code.astro b/packages/astro/components/Code.astro
index 506a3ed3c0..93da72add7 100644
--- a/packages/astro/components/Code.astro
+++ b/packages/astro/components/Code.astro
@@ -1,7 +1,4 @@
 ---
-import path from 'node:path';
-import fs from 'node:fs';
-import { fileURLToPath } from 'node:url';
 import type {
 	BuiltinLanguage,
 	BuiltinTheme,
@@ -64,23 +61,6 @@ const {
 
 // shiki -> shikiji compat
 if (typeof lang === 'object') {
-	// shikiji does not support `path`
-	// https://github.com/shikijs/shiki/blob/facb6ff37996129626f8066a5dccb4608e45f649/packages/shiki/src/loader.ts#L98
-	const langPath = (lang as any).path;
-	if (langPath) {
-		// shiki resolves path from within its package directory :shrug:
-		const astroRoot = fileURLToPath(new URL('../', import.meta.url));
-		const normalizedPath = path.isAbsolute(langPath) ? langPath : path.resolve(astroRoot, langPath);
-		try {
-			const content = fs.readFileSync(normalizedPath, 'utf-8');
-			const parsed = JSON.parse(content);
-			Object.assign(lang, parsed);
-		} catch (e) {
-			throw new Error(`Unable to find language file at ${normalizedPath}`, {
-				cause: e,
-			});
-		}
-	}
 	// `id` renamed to `name` (always override)
 	if ((lang as any).id) {
 		lang.name = (lang as any).id;
diff --git a/packages/astro/src/core/config/schema.ts b/packages/astro/src/core/config/schema.ts
index 4ef77b5326..8fefa2106d 100644
--- a/packages/astro/src/core/config/schema.ts
+++ b/packages/astro/src/core/config/schema.ts
@@ -8,10 +8,9 @@ import { markdownConfigDefaults } from '@astrojs/markdown-remark';
 import { bundledThemes, type BuiltinTheme } from 'shikiji';
 import type { AstroUserConfig, ViteUserConfig } from '../../@types/astro.js';
 
-import fs from 'node:fs';
 import type { OutgoingHttpHeaders } from 'node:http';
 import path from 'node:path';
-import { fileURLToPath, pathToFileURL } from 'node:url';
+import { pathToFileURL } from 'node:url';
 import { z } from 'zod';
 import { appendForwardSlash, prependForwardSlash, removeTrailingForwardSlash } from '../path.js';
 
@@ -238,25 +237,6 @@ export const AstroConfigSchema = z.object({
 							for (const lang of langs) {
 								// shiki -> shikiji compat
 								if (typeof lang === 'object') {
-									// shikiji does not support `path`
-									// https://github.com/shikijs/shiki/blob/facb6ff37996129626f8066a5dccb4608e45f649/packages/shiki/src/loader.ts#L98
-									const langPath = (lang as any).path;
-									if (langPath) {
-										// shiki resolves path from within its package directory :shrug:
-										const astroRoot = fileURLToPath(new URL('../../../', import.meta.url));
-										const normalizedPath = path.isAbsolute(langPath)
-											? langPath
-											: path.resolve(astroRoot, langPath);
-										try {
-											const content = fs.readFileSync(normalizedPath, 'utf-8');
-											const parsed = JSON.parse(content);
-											Object.assign(lang, parsed);
-										} catch (e) {
-											throw new Error(`Unable to find language file at ${normalizedPath}`, {
-												cause: e,
-											});
-										}
-									}
 									// `id` renamed to `name` (always override)
 									if ((lang as any).id) {
 										lang.name = (lang as any).id;
diff --git a/packages/astro/test/astro-markdown-shiki.test.js b/packages/astro/test/astro-markdown-shiki.test.js
index 6315edbffb..459fc64645 100644
--- a/packages/astro/test/astro-markdown-shiki.test.js
+++ b/packages/astro/test/astro-markdown-shiki.test.js
@@ -95,10 +95,6 @@ describe('Astro Markdown Shiki', () => {
 
 			const unknownLang = $('.astro-code').get(1);
 			expect(unknownLang.attribs.style).to.contain('background-color:#24292e;color:#e1e4e8;');
-
-			const caddyLang = $('.astro-code').last();
-			const caddySegments = caddyLang.find('.line');
-			expect(caddySegments.get(1).children[0].attribs.style).to.contain('color:#B392F0');
 		});
 	});
 
diff --git a/packages/astro/test/fixtures/astro-markdown-shiki/langs/astro.config.mjs b/packages/astro/test/fixtures/astro-markdown-shiki/langs/astro.config.mjs
index 9a5f2eced5..130596b0c4 100644
--- a/packages/astro/test/fixtures/astro-markdown-shiki/langs/astro.config.mjs
+++ b/packages/astro/test/fixtures/astro-markdown-shiki/langs/astro.config.mjs
@@ -13,14 +13,6 @@ export default {
 					grammar: riGrammar,
 					aliases: ['ri'],
 				},
-				{
-					id: 'caddy',
-					scopeName: 'source.Caddyfile',
-					// shiki compat: resolves from astro package directory.
-					// careful as astro is linked, this relative path is based on astro/packages/astro.
-					// it's weird but we're testing to prevent regressions.
-					path: './test/fixtures/astro-markdown-shiki/langs/src/caddyfile.tmLanguage.json',
-				},
 			],
 		},
 	},
diff --git a/packages/astro/test/fixtures/astro-markdown-shiki/langs/src/caddyfile.tmLanguage.json b/packages/astro/test/fixtures/astro-markdown-shiki/langs/src/caddyfile.tmLanguage.json
deleted file mode 100644
index 8a9f87c870..0000000000
--- a/packages/astro/test/fixtures/astro-markdown-shiki/langs/src/caddyfile.tmLanguage.json
+++ /dev/null
@@ -1,365 +0,0 @@
-{
-  "$schema": "https://raw.githubusercontent.com/martinring/tmlanguage/master/tmlanguage.json",
-
-  "name": "Caddyfile",
-  "fileTypes": ["Caddyfile"],
-  "scopeName": "source.Caddyfile",
-
-  "patterns": [
-    { "include": "#comments" },
-    { "include": "#strings" },
-    { "include": "#domains" },
-    { "include": "#status_codes" },
-    { "include": "#path" },
-    { "include": "#global_options" },
-    { "include": "#matchers" },
-    { "include": "#directive" },
-    { "include": "#site_block_common" }
-  ],
-
-  "repository": {
-    "comments": {
-      "patterns": [
-        {
-          "name": "comment.line.Caddyfile",
-          "match": "\\s#.*"
-        },
-        {
-          "name": "comment.line.Caddyfile",
-          "match": "^#.*"
-        }
-      ]
-    },
-
-    "strings": {
-      "patterns": [
-        {
-          "comment": "Double Quoted Strings",
-          "begin": "\"",
-          "end": "\"",
-          "name": "string.quoted.double.Caddyfile",
-          "patterns": [
-            {
-              "name": "constant.character.escape.Caddyfile",
-              "match": "\\\\\""
-            }
-          ]
-        },
-        {
-          "comment": "Backtick Strings",
-          "begin": "`",
-          "end": "`",
-          "name": "string.quoted.single.Caddyfile"
-        }
-      ]
-    },
-
-    "status_codes": {
-      "patterns": [
-        {
-          "name": "constant.numeric.decimal",
-          "match": "\\s[0-9]{3}(?!\\.)"
-        }
-      ]
-    },
-
-    "path": {
-      "patterns": [
-        {
-          "name": "keyword.control.caddyfile",
-          "match": "(unix/)*/[a-zA-Z0-9_\\-./*]+"
-        },
-        {
-          "name": "variable.other.property.caddyfile",
-          "match": "\\*.[a-z]{1,5}"
-        },
-        {
-          "name": "variable.other.property.caddyfile",
-          "match": "\\*/?"
-        },
-        {
-          "name": "variable.other.property.caddyfile",
-          "match": "\\?/"
-        }
-      ]
-    },
-
-    "domains": {
-      "patterns": [
-        {
-          "comment": "Domains and URLs",
-          "name": "keyword.control.caddyfile",
-          "match": "(https?://)*[a-z0-9-\\*]*(?:\\.[a-zA-Z]{2,})+(:[0-9]+)*\\S*"
-        },
-        {
-          "comment": "localhost",
-          "name": "keyword.control.caddyfile",
-          "match": "localhost(:[0-9]+)*"
-        },
-        {
-          "comment": "IPv4",
-          "name": "keyword.control.caddyfile",
-          "match": "((25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\.){3}(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)"
-        },
-        {
-          "comment": "IPv6",
-          "name": "keyword.control.caddyfile",
-          "match": "(([0-9a-fA-F]{1,4}:){7,7}[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,7}:|([0-9a-fA-F]{1,4}:){1,6}:[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,5}(:[0-9a-fA-F]{1,4}){1,2}|([0-9a-fA-F]{1,4}:){1,4}(:[0-9a-fA-F]{1,4}){1,3}|([0-9a-fA-F]{1,4}:){1,3}(:[0-9a-fA-F]{1,4}){1,4}|([0-9a-fA-F]{1,4}:){1,2}(:[0-9a-fA-F]{1,4}){1,5}|[0-9a-fA-F]{1,4}:((:[0-9a-fA-F]{1,4}){1,6})|:((:[0-9a-fA-F]{1,4}){1,7}|:)|fe80:(:[0-9a-fA-F]{0,4}){0,4}%[0-9a-zA-Z]{1,}|::(ffff(:0{1,4}){0,1}:){0,1}((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])|([0-9a-fA-F]{1,4}:){1,4}:((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9]))"
-        },
-        {
-          "comment": "Ports",
-          "name": "keyword.control.caddyfile",
-          "match": ":[0-9]+"
-        }
-      ]
-    },
-
-    "global_options": {
-      "patterns": [
-        {
-          "begin": "^(\\{)$",
-          "end": "^(\\})$",
-
-          "beginCaptures": {
-            "0": { "name": "punctuation.definition.dictionary.begin" }
-          },
-
-          "endCaptures": {
-            "0": { "name": "punctuation.definition.dictionary.end" }
-          },
-
-          "patterns": [
-            { "include": "#comments" },
-            {
-              "name": "support.constant.Caddyfile",
-              "match": "^\\s*(debug|https?_port|default_bind|order|storage|storage_clean_interval|renew_interval|ocsp_interval|admin|log|grace_period|shutdown_delay|auto_https|email|default_sni|local_certs|skip_install_trust|acme_ca|acme_ca_root|acme_eab|acme_dns|on_demand_tls|key_type|cert_issuer|ocsp_stapling|preferred_chains|servers|pki|events)"
-            }
-          ]
-        }
-      ]
-    },
-
-    "site_block_common": {
-      "patterns": [{ "include": "#placeholders" }, { "include": "#block" }]
-    },
-
-    "matchers": {
-      "patterns": [
-        {
-          "comment": "Matchers",
-          "name": "support.function.Caddyfile",
-          "match": "@[^\\s]+(?=\\s)"
-        }
-      ]
-    },
-
-    "placeholders": {
-      "patterns": [
-        {
-          "name": "keyword.control.Caddyfile",
-          "match": "\\{[\\[\\]\\w.\\$+-]+\\}"
-        }
-      ]
-    },
-
-    "directive": {
-      "patterns": [
-        {
-          "name": "entity.name.function.Caddyfile",
-          "match": "^\\s*[a-zA-Z_\\-+]+"
-        },
-        { "include": "#content_types" },
-        { "include": "#heredoc" }
-      ]
-    },
-
-    "content_types": {
-      "patterns": [
-        {
-          "comment": "Content Types",
-          "name": "variable.other.property.caddyfile",
-          "match": "(application|audio|example|font|image|message|model|multipart|text|video)/[a-zA-Z0-9*+\\-.]+;* *[a-zA-Z0-9=\\-]*"
-        }
-      ]
-    },
-
-    "block": {
-      "patterns": [
-        {
-          "begin": "\\{",
-          "end": "\\}",
-
-          "patterns": [{ "include": "#block_content" }]
-        }
-      ]
-    },
-
-    "block_content": {
-      "patterns": [
-        {
-          "patterns": [
-            { "include": "#comments" },
-            { "include": "#strings" },
-            { "include": "#domains" },
-            { "include": "#status_codes" },
-            { "include": "#path" },
-            { "include": "#matchers" },
-            { "include": "#placeholders" },
-            { "include": "#directive" },
-            { "include": "#block" }
-          ]
-        }
-      ]
-    },
-
-    "heredoc": {
-      "patterns": [
-        {
-          "begin": "(?i)(?=<<\\s*([a-z_\\x{7f}-\\x{10ffff}][a-z0-9_\\x{7f}-\\x{10ffff}]*)\\s*$)",
-          "end": "(?!\\G)",
-          "name": "string.unquoted.heredoc.caddyfile",
-          "patterns": [{ "include": "#heredoc_interior" }]
-        }
-      ]
-    },
-
-    "heredoc_interior": {
-      "patterns": [
-        {
-          "comment": "CSS",
-
-          "name": "meta.embedded.css",
-          "contentName": "source.css",
-
-          "begin": "(<<)\\s*(CSS)(\\s*)$",
-          "beginCaptures": {
-            "0": { "name": "punctuation.section.embedded.begin.caddyfile" },
-            "1": { "name": "punctuation.definition.string.begin" },
-            "2": { "name": "keyword.operator.heredoc.caddyfile" },
-            "4": { "name": "invalid.illegal.trailing-whitespace.caddyfile" }
-          },
-
-          "end": "^\\s*(\\2)(?![A-Za-z0-9_\\x{7f}-\\x{10ffff}])",
-          "endCaptures": {
-            "0": { "name": "punctuation.section.embedded.end.caddyfile" },
-            "1": { "name": "keyword.operator.heredoc.caddyfile" }
-          },
-
-          "patterns": [{ "include": "source.css" }]
-        },
-
-        {
-          "comment": "HTML",
-
-          "name": "meta.embedded.html",
-          "contentName": "text.html",
-
-          "begin": "(<<)\\s*(HTML)(\\s*)$",
-          "beginCaptures": {
-            "0": { "name": "punctuation.section.embedded.begin.caddyfile" },
-            "1": { "name": "punctuation.definition.string.begin" },
-            "2": { "name": "keyword.operator.heredoc.caddyfile" },
-            "4": { "name": "invalid.illegal.trailing-whitespace.caddyfile" }
-          },
-
-          "end": "^\\s*(\\2)(?![A-Za-z0-9_\\x{7f}-\\x{10ffff}])",
-          "endCaptures": {
-            "0": { "name": "punctuation.section.embedded.end.caddyfile" },
-            "1": { "name": "keyword.operator.heredoc.caddyfile" }
-          },
-
-          "patterns": [{ "include": "text.html.basic" }]
-        },
-
-        {
-          "comment": "JavaScript",
-
-          "name": "meta.embedded.js",
-          "contentName": "source.js",
-
-          "begin": "(<<)\\s*(JAVASCRIPT|JS)(\\s*)$",
-          "beginCaptures": {
-            "0": { "name": "punctuation.section.embedded.begin.caddyfile" },
-            "1": { "name": "punctuation.definition.string.begin" },
-            "2": { "name": "keyword.operator.heredoc.caddyfile" },
-            "4": { "name": "invalid.illegal.trailing-whitespace.caddyfile" }
-          },
-
-          "end": "^\\s*(\\2)(?![A-Za-z0-9_\\x{7f}-\\x{10ffff}])",
-          "endCaptures": {
-            "0": { "name": "punctuation.section.embedded.end.caddyfile" },
-            "1": { "name": "keyword.operator.heredoc.caddyfile" }
-          },
-
-          "patterns": [{ "include": "source.js" }]
-        },
-
-        {
-          "comment": "JSON",
-
-          "name": "meta.embedded.json",
-          "contentName": "source.json",
-
-          "begin": "(<<)\\s*(JSON)(\\s*)$",
-          "beginCaptures": {
-            "0": { "name": "punctuation.section.embedded.begin.caddyfile" },
-            "1": { "name": "punctuation.definition.string.begin" },
-            "2": { "name": "keyword.operator.heredoc.caddyfile" },
-            "4": { "name": "invalid.illegal.trailing-whitespace.caddyfile" }
-          },
-
-          "end": "^\\s*(\\2)(?![A-Za-z0-9_\\x{7f}-\\x{10ffff}])",
-          "endCaptures": {
-            "0": { "name": "punctuation.section.embedded.end.caddyfile" },
-            "1": { "name": "keyword.operator.heredoc.caddyfile" }
-          },
-
-          "patterns": [{ "include": "source.json" }]
-        },
-
-        {
-          "comment": "XML",
-
-          "name": "meta.embedded.xml",
-          "contentName": "text.xml",
-
-          "begin": "(<<)\\s*(XML)(\\s*)$",
-          "beginCaptures": {
-            "0": { "name": "punctuation.section.embedded.begin.caddyfile" },
-            "1": { "name": "punctuation.definition.string.begin" },
-            "2": { "name": "keyword.operator.heredoc.caddyfile" },
-            "4": { "name": "invalid.illegal.trailing-whitespace.caddyfile" }
-          },
-
-          "end": "^\\s*(\\2)(?![A-Za-z0-9_\\x{7f}-\\x{10ffff}])",
-          "endCaptures": {
-            "0": { "name": "punctuation.section.embedded.end.caddyfile" },
-            "1": { "name": "keyword.operator.heredoc.caddyfile" }
-          },
-
-          "patterns": [{ "include": "text.xml" }]
-        },
-
-        {
-          "comment": "Any other heredoc",
-
-          "begin": "(?i)(<<)\\s*([a-z_\\x{7f}-\\x{10ffff}]+[a-z0-9_\\x{7f}-\\x{10ffff}]*)(\\s*)",
-          "beginCaptures": {
-            "0": { "name": "punctuation.section.embedded.begin.caddyfile" },
-            "1": { "name": "punctuation.definition.string.caddyfile" },
-            "2": { "name": "keyword.operator.heredoc.caddyfile" },
-            "4": { "name": "invalid.illegal.trailing-whitespace.caddyfile" }
-          },
-
-          "end": "^\\s*(\\2)(?![A-Za-z0-9_\\x{7f}-\\x{10ffff}])",
-          "endCaptures": {
-            "0": { "name": "punctuation.section.embedded.end.caddyfile" },
-            "1": { "name": "keyword.operator.heredoc.caddyfile" }
-          },
-
-          "patterns": []
-        }
-      ]
-    }
-  }
-}
diff --git a/packages/astro/test/fixtures/astro-markdown-shiki/langs/src/pages/index.md b/packages/astro/test/fixtures/astro-markdown-shiki/langs/src/pages/index.md
index cdd74060f3..d2d756b95d 100644
--- a/packages/astro/test/fixtures/astro-markdown-shiki/langs/src/pages/index.md
+++ b/packages/astro/test/fixtures/astro-markdown-shiki/langs/src/pages/index.md
@@ -24,12 +24,3 @@ fin
 ```unknown
 This language does not exist
 ```
-
-```caddy
-example.com {
-	root * /var/www/wordpress
-	encode gzip
-	php_fastcgi unix//run/php/php-version-fpm.sock
-	file_server
-}
-```