From 4b583a035397d1b52fb206fab7f1cb9eb594a53c Mon Sep 17 00:00:00 2001
From: Amolith <amolith@secluded.site>
Date: Mon, 2 Mar 2026 09:33:45 -0700
Subject: [PATCH] Surface serde error detail in sync handshake failure

---
 src/cmd/sync.rs | 8 ++++++--
 src/main.rs     | 3 +++
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/src/cmd/sync.rs b/src/cmd/sync.rs
index 78366127c03574f17f7928396ac1df8224fbd26b..48e8400fb90db61498ce9424fce4c390b2eb27d5 100644
--- a/src/cmd/sync.rs
+++ b/src/cmd/sync.rs
@@ -93,7 +93,9 @@ pub async fn exchange(store: &db::Store, mut wormhole: Wormhole) -> Result<SyncR
         .receive_json::<SyncHandshake>()
         .await
         .context("failed to receive handshake")?
-        .context("peer sent invalid handshake JSON")?;
+        .context(
+            "peer sent incompatible handshake (are both sides running the same version of td?)",
+        )?;
 
     let their_vv = match &their_handshake {
         SyncHandshake::Sync {
@@ -209,7 +211,9 @@ async fn bootstrap_exchange(
         .receive_json::<SyncHandshake>()
         .await
         .context("failed to receive handshake")?
-        .context("peer sent invalid handshake JSON")?;
+        .context(
+            "peer sent incompatible handshake (are both sides running the same version of td?)",
+        )?;
 
     let project_name = match their_handshake {
         SyncHandshake::Sync { project_name, .. } => project_name,
diff --git a/src/main.rs b/src/main.rs
index abd9fa2ff5475f670f3e65ca1c18bdf77e11a628..b5c7f281ee0d4d2ade89515c47645821d69d9dc2 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -4,6 +4,9 @@ fn main() {
     if let Err(e) = yatd::run() {
         let c = yatd::color::stderr_theme();
         eprintln!("{}error:{} {e}", c.red, c.reset);
+        for cause in e.chain().skip(1) {
+            eprintln!("{}caused by:{} {cause}", c.red, c.reset);
+        }
         process::exit(1);
     }
 }