From 9ed2b60c02bdcec0af9c496865b7ac9785900898 Mon Sep 17 00:00:00 2001
From: mkljczk <git@mkljczk.pl>
Date: Thu, 20 Mar 2025 12:22:31 +0100
Subject: [PATCH] pl-api: Add software definition for snac2

Signed-off-by: mkljczk <git@mkljczk.pl>
---
 packages/pl-api/lib/entities/instance.ts |  7 +++++++
 packages/pl-api/lib/features.ts          | 11 ++++++++++-
 2 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/packages/pl-api/lib/entities/instance.ts b/packages/pl-api/lib/entities/instance.ts
index 9a4ef8e07..6e02014eb 100644
--- a/packages/pl-api/lib/entities/instance.ts
+++ b/packages/pl-api/lib/entities/instance.ts
@@ -5,6 +5,7 @@ import { accountSchema } from './account';
 import { ruleSchema } from './rule';
 import { coerceObject, filteredArray, mimeSchema } from './utils';
 
+const SNAC_REGEX = /^([0-9.]*) \(not true; really snac\/([\w.]*)\)/;
 const WORDPRESS_REGEX = /^WordPress\/[\w+.-]*, EMA\/([\w+.-]*)/;
 
 const getApiVersions = (instance: any): Record<string, number> => ({
@@ -107,6 +108,12 @@ const fixVersion = (version: string) => {
     return `0.0.0 (compatible; WordPress ${wordPressMatch[1]})`;
   }
 
+  const snacMatch = SNAC_REGEX.exec(version);
+
+  if (snacMatch) {
+    return `${snacMatch[1]} (compatible; snac ${snacMatch[2]})`;
+  }
+
   return version;
 };
 
diff --git a/packages/pl-api/lib/features.ts b/packages/pl-api/lib/features.ts
index d65873949..57750f63f 100644
--- a/packages/pl-api/lib/features.ts
+++ b/packages/pl-api/lib/features.ts
@@ -87,6 +87,14 @@ const PIXELFED = 'Pixelfed';
  */
 const PLEROMA = 'Pleroma';
 
+/**
+ * snac, a simple, minimalistic ActivityPub instance written in portable C
+ *
+ * @category Software
+ * @see {@link https://codeberg.org/grunfink/snac2/}
+ */
+const SNAC = 'snac';
+
 /**
  * Takahē, backend with support for serving multiple domains.
  *
@@ -1550,6 +1558,7 @@ const parseVersion = (version: string): Backend => {
 };
 
 export {
+  AKKOMA,
   DITTO,
   FIREFISH,
   FRIENDICA,
@@ -1560,10 +1569,10 @@ export {
   MITRA,
   PIXELFED,
   PLEROMA,
+  SNAC,
   TAKAHE,
   TOKI,
   WORDPRESS,
-  AKKOMA,
   GLITCH,
   HOMETOWN,
   PL,