From 7d66f089b56c5556fd85a39ddaa96a5d72edaa89 Mon Sep 17 00:00:00 2001
From: TroyHernandez <troy@cornball.ai>
Date: Wed, 18 Mar 2026 10:13:08 -0500
Subject: [PATCH 1/2] Warn when torch backend is not installed

Add .onAttach message when Lantern is missing and document
torch::install_torch() in README install instructions.
---
 R/zzz.R   | 9 +++++++++
 README.md | 4 ++++
 2 files changed, 13 insertions(+)

diff --git a/R/zzz.R b/R/zzz.R
index 0f43fac..35d8b98 100644
--- a/R/zzz.R
+++ b/R/zzz.R
@@ -2,3 +2,12 @@
 #' @importFrom stats setNames
 NULL
 
+.onAttach <- function(libname, pkgname) {
+    if (!torch::torch_is_installed()) {
+        packageStartupMessage(
+            "torch backend (Lantern) is not installed.\n",
+            "Run torch::install_torch() to complete setup."
+        )
+    }
+}
+
diff --git a/README.md b/README.md
index 43c15db..8464a71 100644
--- a/README.md
+++ b/README.md
@@ -6,14 +6,18 @@ Native R torch implementation of OpenAI Whisper for speech-to-text transcription
 
 ```r
 install.packages("whisper")
+torch::install_torch()  # one-time: downloads the C++ backend
 ```
 
 Or install the development version from GitHub:
 
 ```r
 remotes::install_github("cornball-ai/whisper")
+torch::install_torch()
 ```
 
+`{whisper}` uses `{torch}` for inference. After installing the R package, `install_torch()` downloads the compiled C++ libraries (Lantern). You only need to run it once.
+
 ## Quick Start
 
 ```r

From caf2fbf9c9e83977c0f82658124eee96a696ed3c Mon Sep 17 00:00:00 2001
From: TroyHernandez <troy@cornball.ai>
Date: Wed, 18 Mar 2026 10:46:44 -0500
Subject: [PATCH 2/2] Fix install_torch docs: sudo for system library

---
 README.md | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/README.md b/README.md
index 8464a71..d549af6 100644
--- a/README.md
+++ b/README.md
@@ -18,6 +18,12 @@ torch::install_torch()
 
 `{whisper}` uses `{torch}` for inference. After installing the R package, `install_torch()` downloads the compiled C++ libraries (Lantern). You only need to run it once.
 
+**littler/r2u users:** If `install_torch()` fails with a permissions error, torch was installed to the system library. Use sudo for the one-time Lantern download:
+
+```bash
+sudo r -e 'torch::install_torch()'
+```
+
 ## Quick Start
 
 ```r