added nats-exec

README.md

@@ -1,2 +1,29 @@
 # nats-upload
 
+Tooling for uploading and executing binaries via NATS Object Store.
+
+## nats-upload
+
+A GitHub Action to upload binaries to a NATS Object Store for self-update.
+
+## nats-exec
+
+A tool to download and execute the latest version of a binary from NATS Object Store.
+
+### Usage
+
+```bash
+nats-exec <binary-name> [args...]
+```
+
+Example:
+```bash
+nats-exec mybinary version
+```
+
+### Environment Variables
+
+- `NATS_URL`: NATS server URL (default: `nats://localhost:4222`)
+- `NATS_BUCKET`: Object store bucket name (default: `binaries`)
+- `NATS_CACHE_DIR`: Local cache directory (default: `/tmp/nats-exec-cache`)
+