diff --git a/src/server/ssh/sesh.ts b/src/server/ssh/sesh.ts
index 6de74dd..b58adf1 100644
--- a/src/server/ssh/sesh.ts
+++ b/src/server/ssh/sesh.ts
@@ -1,5 +1,21 @@
+/** The ISC License
+
+Copyright (c) 2010-2023 Isaac Z. Schlueter and Contributors
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
+
 import type { NodeSSH } from "node-ssh";
-// a storage-unbounded ttl cache that is not an lru-cache
+
 export const cache = {
   data: new Map<PropertyKey, NodeSSH>(),
   timers: new Map<PropertyKey, ReturnType<typeof setTimeout>>(),