git.delta.rocks / fleet / refs/commits / 48d120aa4aef

--- a/Cargo.lock
+++ b/Cargo.lock
@@ -722,9 +722,9 @@
 
 [[package]]
 name = "camino"
-version = "1.2.2"
+version = "1.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e629a66d692cb9ff1a1c664e41771b3dcaf961985a9774c0eb0bd1b51cf60a48"
+checksum = "b4ce8d3bd5823c7504d3f579f13e7b2f3da252fcb938c594d5680ee508bf846f"
 dependencies = [
  "serde_core",
 ]
@@ -1899,9 +1899,9 @@
  "fleet-shared",
  "hex",
  "hmac 0.13.0",
- "pbkdf2 0.12.2",
+ "pbkdf2 0.13.0",
  "rand 0.10.1",
- "sha2 0.10.9",
+ "sha2 0.11.0",
  "x25519-dalek",
 ]
 
@@ -5011,6 +5011,7 @@
  "nix-eval",
  "remowt-client",
  "remowt-endpoints",
+ "remowt-link-shared",
  "serde",
  "thiserror 2.0.18",
  "tokio",
@@ -5031,13 +5032,13 @@
  "iroh-base",
  "n0-watcher",
  "noq-udp",
- "remowt-ui-prompt",
  "serde",
  "serde_json",
  "thiserror 2.0.18",
  "tokio",
  "tokio-util",
  "tracing",
+ "uuid",
 ]
 
 [[package]]
@@ -5093,11 +5094,11 @@
  "anyhow",
  "bifrostlink",
  "bifrostlink-macros",
+ "remowt-link-shared",
  "serde",
  "thiserror 2.0.18",
  "tokio",
  "tracing",
- "zbus",
 ]
 
 [[package]]

--- a/Cargo.toml
+++ b/Cargo.toml
@@ -15,11 +15,11 @@
 remowt-fleet = { path = "./crates/remowt-fleet" }
 
 remowt-client = { version = "0.1.9", path = "remowt/crates/remowt-client" }
-remowt-polkit-shared = { version = "0.1.9", path = "remowt/crates/polkit-shared" }
+remowt-endpoints = { version = "0.1.9", path = "remowt/crates/remowt-endpoints" }
 remowt-link-shared = { version = "0.1.9", path = "remowt/crates/remowt-link-shared" }
 remowt-plugin = { version = "0.1.9", path = "remowt/crates/remowt-plugin" }
+remowt-polkit-shared = { version = "0.1.9", path = "remowt/crates/polkit-shared" }
 remowt-ui-prompt = { version = "0.1.9", path = "remowt/crates/remowt-ui-prompt" }
-remowt-endpoints = { version = "0.1.9", path = "remowt/crates/remowt-endpoints" }
 
 bifrostlink = "0.2.0"
 bifrostlink-macros = "0.2.0"
@@ -27,16 +27,9 @@
 
 iroh = { version = "1.0.0", features = ["unstable-custom-transports"] }
 iroh-base = "1.0.0"
-noq-udp = { version = "1.0.0", default-features = false }
 n0-watcher = "1.0.0"
+noq-udp = { version = "1.0.0", default-features = false }
 
-uuid = { version = "1", features = ["v4"] }
-russh = { version = "0.61.2", default-features = false, features = [
-        "ring",
-        "flate2",
-        "rsa",
-] }
-russh-config = "0.58.0"
 age = { version = "0.11", features = ["plugin", "ssh"] }
 anyhow = "1.0"
 base64 = "0.22.1"
@@ -64,13 +57,15 @@
 opentelemetry-appender-tracing = "0.32.0"
 opentelemetry-otlp = { version = "0.32.0", features = ["grpc-tonic", "gzip-tonic", "http-json", "reqwest-rustls"] }
 opentelemetry_sdk = "0.32.0"
-pbkdf2 = "0.12"
+pbkdf2 = "0.13"
 peg = "0.8.5"
 pkg-config = "0.3.30"
 rand = "0.10.0"
+russh = { version = "0.61.2", default-features = false, features = ["flate2", "ring", "rsa"] }
+russh-config = "0.58.0"
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
-sha2 = "0.10"
+sha2 = "0.11"
 shlex = "2.0.1"
 tabled = "0.21.0"
 tempfile = "3.20"
@@ -81,14 +76,15 @@
 tracing = "0.1"
 tracing-indicatif = "0.3.13"
 tracing-opentelemetry = "0.33.0"
+uuid = { version = "1", features = ["v4"] }
 # For fixed coloring needs to be updated to https://github.com/tokio-rs/tracing/pull/3484
+tokio-util = "0.7.11"
 tracing-subscriber = { version = "0.3.19", features = ["env-filter", "fmt"] }
 unicode_categories = "0.1.1"
 vte = { version = "0.15.0", features = ["ansi"] }
 x25519-dalek = { version = "2.0.1", features = ["getrandom"] }
 zbus = "5.16.0"
 zbus_polkit = "5.0.0"
-tokio-util = "0.7.11"
 
 [profile.dev]
 panic = "abort"

--- a/cmds/fleet/src/cmds/build_systems.rs
+++ b/cmds/fleet/src/cmds/build_systems.rs
@@ -5,8 +5,9 @@
 use clap::Parser;
 use fleet_base::{
 	deploy::{DeployAction, deploy_task, upload_task},
-	host::{Config, DeployKind, GenerationStorage},
+	host::{Config, DeployKind},
 	opts::FleetOpts,
+	pins::GenerationStorage,
 };
 use futures::{StreamExt as _, stream::FuturesUnordered};
 use nix_eval::nix_go;
@@ -145,8 +146,7 @@
 					}
 
 					let remote_path =
-						match upload_task(&config, &host, GenerationStorage::Deployer, built).await
-						{
+						match upload_task(&host, GenerationStorage::Deployer, built).await {
 							Ok(v) => v,
 							Err(e) => {
 								error!("upload failed: {e}");

--- a/cmds/fleet/src/cmds/rollback.rs
+++ b/cmds/fleet/src/cmds/rollback.rs
@@ -4,8 +4,9 @@
 use clap::Parser;
 use fleet_base::{
 	deploy::{DeployAction, deploy_task, upload_task},
-	host::{Config, ConfigHost, Generation, GenerationStorage},
+	host::{Config, ConfigHost},
 	opts::FleetOpts,
+	pins::{Generation, GenerationStorage},
 };
 use tabled::Table;
 use tracing::{info, warn};
@@ -103,13 +104,8 @@
 						Table::new(&generations)
 					);
 				};
-				let remote_path = upload_task(
-					config,
-					&host,
-					generation.location,
-					generation.store_path.clone(),
-				)
-				.await?;
+				let remote_path =
+					upload_task(&host, generation.location, generation.store_path.clone()).await?;
 
 				deploy_task(
 					action,

--- a/cmds/fleet/src/main.rs
+++ b/cmds/fleet/src/main.rs
@@ -1,8 +1,6 @@
 #![recursion_limit = "512"]
 
 pub(crate) mod cmds;
-// pub(crate) mod command;
-pub(crate) mod extra_args;
 
 use std::{process::ExitCode, sync::Arc};
 

--- a/cmds/generator-helper/src/main.rs
+++ b/cmds/generator-helper/src/main.rs
@@ -14,7 +14,7 @@
 use clap::{Parser, ValueEnum};
 use ed25519_dalek::SecretKey;
 use fleet_shared::SecretData;
-use hmac::Mac as _;
+use hmac::{KeyInit as _, Mac as _};
 use rand::{
 	Rng as _,
 	distr::{Alphanumeric, Distribution, SampleString, Uniform},
@@ -338,8 +338,8 @@
 					);
 
 					type HmacSha256 = hmac::Hmac<sha2::Sha256>;
-					let mut mac = <HmacSha256 as hmac::Mac>::new_from_slice(&salted)
-						.expect("HMAC accepts any key length");
+					let mut mac =
+						HmacSha256::new_from_slice(&salted).expect("HMAC accepts any key length");
 					mac.update(b"Client Key");
 					let client_key = mac.finalize().into_bytes();
 
@@ -347,8 +347,8 @@
 					hasher.update(client_key);
 					let stored_key = hasher.finalize();
 
-					let mut mac = <HmacSha256 as hmac::Mac>::new_from_slice(&salted)
-						.expect("HMAC accepts any key length");
+					let mut mac =
+						HmacSha256::new_from_slice(&salted).expect("HMAC accepts any key length");
 					mac.update(b"Server Key");
 					let server_key = mac.finalize().into_bytes();
 

--- a/cmds/remowt-plugin-fleet/Cargo.toml
+++ b/cmds/remowt-plugin-fleet/Cargo.toml
@@ -2,7 +2,7 @@
 name = "remowt-plugin-fleet"
 description = "Remowt plugin exposing fleet's Nix endpoint to a running agent"
 version.workspace = true
-edition = "2021"
+edition.workspace = true
 
 [dependencies]
 remowt-fleet.workspace = true

--- a/crates/fleet-base/src/deploy.rs
+++ b/crates/fleet-base/src/deploy.rs
@@ -11,7 +11,8 @@
 use tokio::time::sleep;
 use tracing::{Instrument as _, error, info, info_span, warn};
 
-use crate::host::{Config, ConfigHost, DeployKind, Generation, GenerationStorage};
+use crate::host::{ConfigHost, DeployKind};
+use crate::pins::{Generation, GenerationStorage};
 
 #[derive(ValueEnum, Clone, Copy)]
 pub enum DeployAction {
@@ -260,13 +261,12 @@
 			{
 				// It is ok, if there was no reboot - then timer might not be running.
 			}
-			if action.should_schedule_rollback_run() {
-				if let Err(e) = elevated_systemd
+			if action.should_schedule_rollback_run()
+				&& let Err(e) = elevated_systemd
 					.stop("rollback-watchdog-run.timer".to_owned())
 					.await
-				{
-					error!("failed to disarm rollback run: {e}");
-				}
+			{
+				error!("failed to disarm rollback run: {e}");
 			}
 		} else if let Err(_e) = elevated_fs
 			.rm_file(Utf8PathBuf::from("/etc/fleet_rollback_marker"))
@@ -280,7 +280,6 @@
 }
 
 pub async fn upload_task(
-	config: &Config,
 	host: &ConfigHost,
 	location: GenerationStorage,
 	generation: Utf8PathBuf,

--- a/crates/fleet-base/src/fleetdata.rs
+++ b/crates/fleet-base/src/fleetdata.rs
@@ -6,6 +6,7 @@
 	},
 	fmt,
 	io::{self, Cursor},
+	str::FromStr,
 	sync::RwLock,
 };
 
@@ -92,8 +93,9 @@
 	#[serde(skip_serializing)]
 	host_secrets: BTreeMap<SecretOwner, BTreeMap<String, FleetSecretDistribution>>,
 }
-impl FleetData {
-	pub fn from_str(s: &str) -> anyhow::Result<Self> {
+impl FromStr for FleetData {
+	type Err = anyhow::Error;
+	fn from_str(s: &str) -> anyhow::Result<Self> {
 		let mut data: Self = nixlike::parse_str(s)?;
 		if !data.host_secrets.is_empty() {
 			info!("migrating host secrets into shared secrets structure");
@@ -294,15 +296,16 @@
 	/// Drop expired distributions
 	fn prune_expired(&mut self, now: DateTime<Utc>) {
 		for ele in self.distributions_mut() {
-			if let Some(expires_at) = ele.secret.expires_at {
-				if expires_at < now {
-					ele.prune(format!("expired during check at {now}"));
-				}
+			if let Some(expires_at) = ele.secret.expires_at
+				&& expires_at < now
+			{
+				ele.prune(format!("expired during check at {now}"));
 			}
 		}
 	}
 	/// Perform all pruning relevant to shared secrets
 	/// Also see expected_owner_removed
+	#[allow(clippy::too_many_arguments)]
 	pub fn prune_shared(
 		&mut self,
 		expected_owners: &BTreeSet<SecretOwner>,
@@ -323,14 +326,15 @@
 		let mut to_add = expected_owners.difference(&current_owners);
 		if to_add.next().is_some() && unique && regenerate_on_owner_added {
 			for dist in self.distributions_mut() {
-				dist.prune(format!(
+				dist.prune(
 					"owners missing, can't add new distribution, regeneration preferred"
-				));
+						.to_string(),
+				);
 			}
 			return;
 		}
 
-		for to_remove in current_owners.difference(&expected_owners) {
+		for to_remove in current_owners.difference(expected_owners) {
 			self.entry(to_remove.clone()).remove(
 				regenerate_on_owner_removed,
 				"owner was removed from expected owners list, regenerate_on_owner_removed is set"
@@ -362,9 +366,7 @@
 	) -> Option<usize> {
 		self.distributions()
 			.enumerate()
-			.max_by(|(_, a), (_, b)| {
-				compare_dists(&a, &b, prefer_identities, include_pruned_owners)
-			})
+			.max_by(|(_, a), (_, b)| compare_dists(a, b, prefer_identities, include_pruned_owners))
 			.map(|(p, _)| p)
 	}
 	/// Secret wants to be the same on all hosts, leave only one unpruned version of it
@@ -410,10 +412,10 @@
 		filter_owner: Option<&SecretOwner>,
 	) {
 		'dist: for ele in self.distributions_mut() {
-			if let Some(filter_owner) = filter_owner {
-				if !ele.owners.contains(filter_owner) {
-					continue;
-				}
+			if let Some(filter_owner) = filter_owner
+				&& !ele.owners.contains(filter_owner)
+			{
+				continue;
 				// Note: secret still can have multiple owners even if it is host-owned
 				// in this case we expect that all owners using the same generator, so we can prune distribution for all of them
 			}
@@ -442,10 +444,10 @@
 		filter_owner: Option<&SecretOwner>,
 	) {
 		for ele in self.distributions_mut() {
-			if let Some(filter_owner) = filter_owner {
-				if !ele.owners.contains(filter_owner) {
-					continue;
-				}
+			if let Some(filter_owner) = filter_owner
+				&& !ele.owners.contains(filter_owner)
+			{
+				continue;
 				// Note: secret still can have multiple owners even if it is host-owned
 				// in this case we expect that all owners using the same generator, so we can prune distribution for all of them
 			}
@@ -519,7 +521,7 @@
 	}
 }
 
-struct OccupiedDistEntry<'d> {
+pub struct OccupiedDistEntry<'d> {
 	distributions: &'d mut FleetSecretDistributions,
 	idx: usize,
 	owners: BTreeSet<SecretOwner>,
@@ -537,16 +539,16 @@
 			owners: self.owners,
 		}
 	}
-	fn set(self, secret: FleetSecretData, reason: String) -> Self {
+	pub fn set(self, secret: FleetSecretData, reason: String) -> Self {
 		self.remove(false, reason).set(secret)
 	}
 }
-struct VacantDistEntry<'d> {
+pub struct VacantDistEntry<'d> {
 	distributions: &'d mut FleetSecretDistributions,
 	owners: BTreeSet<SecretOwner>,
 }
 impl<'d> VacantDistEntry<'d> {
-	fn set(self, secret: FleetSecretData) -> OccupiedDistEntry<'d> {
+	pub fn set(self, secret: FleetSecretData) -> OccupiedDistEntry<'d> {
 		let Self {
 			distributions,
 			owners,
@@ -568,18 +570,18 @@
 	}
 }
 
-enum DistEntry<'d> {
+pub enum DistEntry<'d> {
 	Vacant(VacantDistEntry<'d>),
 	Occupied(OccupiedDistEntry<'d>),
 }
 impl DistEntry<'_> {
-	fn remove(self, whole_dist: bool, reason: String) -> Self {
+	pub fn remove(self, whole_dist: bool, reason: String) -> Self {
 		match self {
 			DistEntry::Vacant(_) => self,
 			DistEntry::Occupied(o) => Self::Vacant(o.remove(whole_dist, reason)),
 		}
 	}
-	fn set(self, secret: FleetSecretData, reason: String) -> Self {
+	pub fn set(self, secret: FleetSecretData, reason: String) -> Self {
 		Self::Occupied(match self {
 			DistEntry::Vacant(e) => e.set(secret),
 			DistEntry::Occupied(e) => e.set(secret, reason),
@@ -683,7 +685,7 @@
 }
 
 impl FleetSecrets {
-	pub fn keys(&self) -> btree_map::Keys<String, FleetSecretDistributions> {
+	pub fn keys(&self) -> btree_map::Keys<'_, String, FleetSecretDistributions> {
 		self.0.keys()
 	}
 
@@ -713,9 +715,7 @@
 	}
 
 	pub fn get_or_create(&mut self, secret: &str) -> &mut FleetSecretDistributions {
-		self.0
-			.entry(secret.to_owned())
-			.or_insert(FleetSecretDistributions::default())
+		self.0.entry(secret.to_owned()).or_default()
 	}
 
 	pub fn contains(&self, secret: &str) -> bool {

--- a/crates/fleet-base/src/host.rs
+++ b/crates/fleet-base/src/host.rs
@@ -13,18 +13,17 @@
 use camino::{Utf8Path, Utf8PathBuf};
 use chrono::{DateTime, Utc};
 use fleet_shared::SecretData;
-use nix_eval::{Store, Value, eval_store, nix_go, nix_go_json, util::assert_warn};
+use nix_eval::{Store, Value, drv::DrvGraph, eval_store, nix_go, nix_go_json, util::assert_warn};
 use remowt_client::{AgentBundle, Remowt};
 use remowt_endpoints::fs::FsClient;
-use remowt_link_shared::Address;
+use remowt_fleet::NixClient;
+use remowt_link_shared::BifConfig;
 use remowt_ui_prompt::auto::AutoPrompter;
 use remowt_ui_prompt::bifrost::PromptEndpoints;
 use remowt_ui_prompt::{PrependSourcePrompter, Source};
-use tabled::Tabled;
 use tempfile::NamedTempFile;
-use time::UtcDateTime;
-use tokio::task::spawn_blocking;
-use tracing::warn;
+use tokio::{sync::OnceCell, task::spawn_blocking};
+use tracing::{info, warn};
 
 use crate::fleetdata::{
 	FleetData, FleetSecretData, FleetSecretDistribution, FleetSecretPart, SecretOwner,
@@ -101,7 +100,7 @@
 	groups: OnceLock<Vec<String>>,
 
 	// TODO: Both of those values are taken from host opts, there should be a cleaner way to specify it
-	deploy_kind: OnceLock<DeployKind>,
+	deploy_kind: OnceCell<DeployKind>,
 	session_destination: OnceLock<String>,
 	legacy_ssh_store: OnceLock<bool>,
 
@@ -114,7 +113,7 @@
 	pub local: bool,
 	pub remowt: OnceLock<Remowt>,
 	nix_store: OnceLock<Arc<Store>>,
-	nix_plugin: tokio::sync::OnceCell<()>,
+	nix_plugin: OnceCell<()>,
 }
 
 const NIX_PLUGIN_ID: u16 = 2;
@@ -130,75 +129,16 @@
 
 fn agent_bundle() -> Result<AgentBundle> {
 	AgentBundle::from_dir(agents_dir()?)
-}
-
-#[derive(Debug, Clone, Copy)]
-pub enum GenerationStorage {
-	Deployer,
-	Machine,
-	Pusher,
-}
-impl GenerationStorage {
-	fn prefix(&self) -> &'static str {
-		match self {
-			GenerationStorage::Deployer => "deployer.",
-			GenerationStorage::Machine => "",
-			GenerationStorage::Pusher => "pusher.",
-		}
-	}
 }
 
-#[derive(Tabled, Debug)]
-pub struct Generation {
-	#[tabled(rename = "ID", format("{}", self.rollback_id()))]
-	pub id: u32,
-	#[tabled(rename = "Current")]
-	pub current: bool,
-	#[tabled(rename = "Created at")]
-	pub datetime: UtcDateTime,
-	#[tabled(format = "{:?}")]
-	pub store_path: Utf8PathBuf,
-	#[tabled(skip)]
-	pub location: GenerationStorage,
-}
-impl Generation {
-	pub fn rollback_id(&self) -> String {
-		format!("{}{}", self.location.prefix(), self.id)
-	}
+enum RemoteDerivationMode {
+	CopySigned,
+	Copy,
+	Attic,
+	Cachix,
 }
 
 impl ConfigHost {
-	pub async fn list_generations(&self, profile: &str) -> Result<Vec<Generation>> {
-		let plugin_id = self.ensure_nix_plugin().await?;
-		let nix = self
-			.remowt()
-			.await?
-			.plugin_endpoints::<remowt_fleet::NixClient<_>>(plugin_id);
-		let raw = nix
-			.list_generations(profile.to_owned())
-			.await
-			.map_err(|e| anyhow!("{e:?}"))?
-			.map_err(|e| anyhow!("{e}"))?;
-		raw.into_iter()
-			.map(|g| {
-				let id: u32 =
-					g.id.try_into()
-						.with_context(|| format!("generation id {} doesn't fit in u32", g.id))?;
-				let datetime = UtcDateTime::from_unix_timestamp(g.creation_time_unix)
-					.with_context(|| {
-						format!("invalid generation timestamp {}", g.creation_time_unix)
-					})?;
-				Ok(Generation {
-					id,
-					current: g.current,
-					datetime,
-					store_path: g.store_path,
-					location: GenerationStorage::Machine,
-				})
-			})
-			.collect()
-	}
-
 	pub fn set_session_destination(&self, dest: String) {
 		self.session_destination
 			.set(dest)
@@ -215,34 +155,31 @@
 			.expect("legacy ssh store is already set")
 	}
 	pub async fn deploy_kind(&self) -> Result<DeployKind> {
-		if let Some(kind) = self.deploy_kind.get() {
-			return Ok(*kind);
-		}
-		let remowt = self.remowt().await?;
-		let fs = remowt.endpoints::<FsClient<_>>();
-		let is_fleet_managed = match fs.file_exists(Utf8PathBuf::from("/etc/FLEET_HOST")).await {
-			Ok(v) => v,
-			Err(e) => {
-				bail!("failed to query remote system kind: {e}");
+		self.deploy_kind.get_or_try_init(|| async {
+			let remowt = self.remowt().await?;
+			let fs = remowt.endpoints::<FsClient<_>>();
+			let is_fleet_managed = match fs.file_exists(Utf8PathBuf::from("/etc/FLEET_HOST")).await {
+				Ok(v) => v,
+				Err(e) => {
+					bail!("failed to query remote system kind: {e}");
+				}
+			};
+			if !is_fleet_managed {
+				bail!(
+					"{}",
+					indoc::indoc! {"
+					host is not marked as managed by fleet
+					if you're not trying to lustrate/install system from scratch,
+					you should either
+						1. manually create /etc/FLEET_HOST file on the target host,
+						2. use ?deploy_kind=fleet host argument if you're upgrading from older version of fleet
+						3. use ?deploy_kind=upgrade_to_fleet if you're upgrading from plain nixos to fleet-managed nixos
+					for installation use ?deploy_kind=nixos_install / ?deploy_kind=nixos_lustrate 
+				"}
+				);
 			}
-		};
-		if !is_fleet_managed {
-			bail!(
-				"{}",
-				indoc::indoc! {"
-				host is not marked as managed by fleet
-				if you're not trying to lustrate/install system from scratch,
-				you should either
-					1. manually create /etc/FLEET_HOST file on the target host,
-					2. use ?deploy_kind=fleet host argument if you're upgrading from older version of fleet
-					3. use ?deploy_kind=upgrade_to_fleet if you're upgrading from plain nixos to fleet-managed nixos
-				for installation use ?deploy_kind=nixos_install / ?deploy_kind=nixos_lustrate 
-			"}
-			);
-		}
-		// TOCTOU is possible
-		let _ = self.deploy_kind.set(DeployKind::Fleet);
-		Ok(*self.deploy_kind.get().expect("deploy kind is just set"))
+			Ok(DeployKind::Fleet)
+		}).await.copied()
 	}
 	async fn connection(&self) -> Result<Remowt> {
 		if let Some(conn) = self.remowt.get() {
@@ -285,6 +222,11 @@
 		self.connection().await
 	}
 
+	pub async fn nix_client(&self) -> Result<NixClient<BifConfig>> {
+		let remowt = self.remowt().await?;
+		let plugin_id = self.ensure_nix_plugin().await?;
+		Ok(remowt.plugin_endpoints(plugin_id))
+	}
 	pub fn ensure_nix_plugin(&self) -> Pin<Box<dyn Future<Output = Result<u16>> + Send + '_>> {
 		Box::pin(async {
 			self.nix_plugin
@@ -305,12 +247,6 @@
 						.run0_load_plugin_path(NIX_PLUGIN_ID, bin.as_str())
 						.await
 						.context("failed to load the fleet nix plugin")?;
-					self.remowt()
-						.await?
-						.rpc()
-						.wait_for_connection_to(Address::Plugin(NIX_PLUGIN_ID))
-						.await
-						.map_err(|_| anyhow!("failed to wait for plugin"))?;
 					anyhow::Ok(())
 				})
 				.await?;
@@ -407,6 +343,10 @@
 		}
 		let sign: Pin<Box<dyn Future<Output = Result<()>> + Send>> = {
 			let path = path.clone();
+			let graph = DrvGraph::resolve(&eval_store(), &path)
+				.context("failed to resolve graph to be uploaded")?;
+			info!("signing {} paths", graph.nodes.len());
+
 			Box::pin(async move {
 				let local = self.config.local_host();
 				let plugin_id = local.ensure_nix_plugin().await?;
@@ -564,8 +504,8 @@
 					local: true,
 					remowt: OnceLock::new(),
 					nix_store: OnceLock::new(),
-					nix_plugin: tokio::sync::OnceCell::new(),
-					deploy_kind: OnceLock::new(),
+					nix_plugin: OnceCell::new(),
+					deploy_kind: OnceCell::new(),
 					session_destination: OnceLock::new(),
 					legacy_ssh_store: OnceLock::new(),
 				})
@@ -607,8 +547,8 @@
 			local: self.localhost == name,
 			remowt: OnceLock::new(),
 			nix_store: OnceLock::new(),
-			nix_plugin: tokio::sync::OnceCell::new(),
-			deploy_kind: OnceLock::new(),
+			nix_plugin: OnceCell::new(),
+			deploy_kind: OnceCell::new(),
 			session_destination: OnceLock::new(),
 			legacy_ssh_store: OnceLock::new(),
 		})

--- a/crates/fleet-base/src/lib.rs
+++ b/crates/fleet-base/src/lib.rs
@@ -3,4 +3,5 @@
 pub mod host;
 mod keys;
 pub mod opts;
+pub mod pins;
 pub mod primops;

--- a/crates/nixlike/fuzz/Cargo.toml
+++ b/crates/nixlike/fuzz/Cargo.toml
@@ -4,7 +4,7 @@
 version = "0.0.0"
 authors = ["Automatically generated"]
 publish = false
-edition = "2024"
+edition.workspace = true
 
 [package.metadata]
 cargo-fuzz = true

--- a/crates/remowt-fleet/Cargo.toml
+++ b/crates/remowt-fleet/Cargo.toml
@@ -2,7 +2,7 @@
 name = "remowt-fleet"
 description = "Remowt endpoints for fleet"
 version.workspace = true
-edition = "2021"
+edition.workspace = true
 
 [dependencies]
 bifrostlink.workspace = true
@@ -18,3 +18,4 @@
 tokio = { workspace = true, features = ["io-util", "net", "process", "rt"] }
 tracing.workspace = true
 uuid.workspace = true
+remowt-link-shared.workspace = true

--- a/crates/remowt-fleet/src/lib.rs
+++ b/crates/remowt-fleet/src/lib.rs
@@ -7,6 +7,7 @@
 use nix_eval::eval_store;
 use remowt_client::Remowt;
 use remowt_endpoints::nix_daemon::NixDaemonClient;
+use remowt_link_shared::iroh_tunnel::TunnelAddr;
 use serde::{Deserialize, Serialize};
 use tokio::net::UnixListener;
 use tokio::task::spawn_blocking;
@@ -98,8 +99,10 @@
 				continue;
 			}
 		};
-		let sock_str = remote_sock.as_str().to_owned();
-		match nix.serve_store(store.clone(), sock_str).await {
+		match nix
+			.serve_store(store.clone(), TunnelAddr::Unix(remote_sock))
+			.await
+		{
 			Ok(Ok(())) => {}
 			Ok(Err(e)) => {
 				error!("nix bridge: {e}");

--- a/flake.lock
+++ b/flake.lock
@@ -171,35 +171,6 @@
         "type": "github"
       }
     },
-    "remowt-agents": {
-      "inputs": {
-        "crane": [
-          "crane"
-        ],
-        "flake-parts": [
-          "flake-parts"
-        ],
-        "nixpkgs": [
-          "nixpkgs"
-        ],
-        "rust-overlay": "rust-overlay",
-        "shelly": [
-          "shelly"
-        ]
-      },
-      "locked": {
-        "lastModified": 1781491763,
-        "ref": "refs/heads/trunk",
-        "rev": "8b18e8b236d428ed8fbf5818272d17f5f538c13c",
-        "revCount": 40,
-        "type": "git",
-        "url": "https://gerrit.delta.rocks/remowt"
-      },
-      "original": {
-        "type": "git",
-        "url": "https://gerrit.delta.rocks/remowt"
-      }
-    },
     "root": {
       "inputs": {
         "crane": "crane",
@@ -207,33 +178,12 @@
         "fleet-tf": "fleet-tf",
         "nix": "nix",
         "nixpkgs": "nixpkgs",
-        "remowt-agents": "remowt-agents",
-        "rust-overlay": "rust-overlay_2",
+        "rust-overlay": "rust-overlay",
         "shelly": "shelly",
         "treefmt-nix": "treefmt-nix"
       }
     },
     "rust-overlay": {
-      "inputs": {
-        "nixpkgs": [
-          "remowt-agents",
-          "nixpkgs"
-        ]
-      },
-      "locked": {
-        "lastModified": 1769309768,
-        "owner": "oxalica",
-        "repo": "rust-overlay",
-        "rev": "140c9dc582cb73ada2d63a2180524fcaa744fad5",
-        "type": "github"
-      },
-      "original": {
-        "owner": "oxalica",
-        "repo": "rust-overlay",
-        "type": "github"
-      }
-    },
-    "rust-overlay_2": {
       "inputs": {
         "nixpkgs": [
           "nixpkgs"

--- a/flake.nix
+++ b/flake.nix
@@ -23,13 +23,6 @@
       url = "github:numtide/treefmt-nix";
       inputs.nixpkgs.follows = "nixpkgs";
     };
-    remowt-agents = {
-      url = "git+https://gerrit.delta.rocks/remowt";
-      inputs.nixpkgs.follows = "nixpkgs";
-      inputs.flake-parts.follows = "flake-parts";
-      inputs.crane.follows = "crane";
-      inputs.shelly.follows = "shelly";
-    };
     # DeterminateSystem's nix fork is controversial, but I don't mind it,
     # and it has lazy-trees support which is useful for fleet.
     nix = {

--- a/pkgs/default.nix
+++ b/pkgs/default.nix
@@ -3,9 +3,17 @@
   craneLib,
   inputs,
 }:
+let
+  remowt-agents-bundle = callPackage ./remowt-agents-bundle.nix { inherit craneLib; };
+in
 {
   fleet = callPackage ./fleet.nix { inherit craneLib inputs; };
-  remowt-plugin-fleet = callPackage ./remowt-plugin-fleet.nix { inherit craneLib inputs; };
   fleet-install-secrets = callPackage ./fleet-install-secrets.nix { inherit craneLib; };
   fleet-generator-helper = callPackage ./fleet-generator-helper.nix { inherit craneLib; };
+
+  inherit remowt-agents-bundle;
+  remowt-plugin-fleet = callPackage ./remowt-plugin-fleet.nix {
+    inherit craneLib inputs remowt-agents-bundle;
+  };
+  remowt-ssh = callPackage ./remowt-ssh.nix { inherit craneLib remowt-agents-bundle; };
 }

3  craneLib,3  craneLib,
4  installShellFiles,4  installShellFiles,
5  inputs,5  inputs,
6  remowt-agents-bundle,
67
7  stdenv,8  stdenv,
8  pkg-config,9  pkg-config,
2627
27  cargoExtraArgs = "--locked -p ${pname}";28  cargoExtraArgs = "--locked -p ${pname}";
2829
29  REMOWT_AGENTS_DIR = "${inputs.remowt-agents.packages.${system}.remowt-agents}";30  REMOWT_AGENTS_DIR = "${remowt-agents-bundle}";
30  # TODO: built-in fleet prompter should be a prodash widget, or it should require31  # TODO: built-in fleet prompter should be a prodash widget, or it should require
31  # tty remowt prompter running on host machine idk.32  # tty remowt prompter running on host machine idk.
32  ROFI = "${rofi}/bin/rofi";33  ROFI = "${rofi}/bin/rofi";

--- a/remowt/cmds/remowt-agent/Cargo.toml
+++ b/remowt/cmds/remowt-agent/Cargo.toml
@@ -2,7 +2,7 @@
 name = "remowt-agent"
 description = "remowt on-host agent serving fs/pty/systemd endpoints over bifrostlink"
 version.workspace = true
-edition = "2021"
+edition.workspace = true
 license.workspace = true
 
 [dependencies]

--- a/remowt/cmds/remowt-agent/src/askpass.rs
+++ b/remowt/cmds/remowt-agent/src/askpass.rs
@@ -1,47 +1,22 @@
 use std::borrow::Cow;
 use std::io::Write as _;
 
-use anyhow::Context as _;
-use remowt_ui_prompt::dbus::{DbusPrompterInterface, DbusPrompterProxy, BUS_NAME, PROMPTER_PATH};
+use bifrostlink::declarative::RemoteEndpoints as _;
+use remowt_link_shared::{gateway, Address, BifConfig};
+use remowt_ui_prompt::bifrost::PromptEndpointsClient;
 use remowt_ui_prompt::{Prompter, Source};
-use tracing::debug;
-use zbus::Connection;
-
-pub async fn serve<P>(conn: &Connection, prompter: P) -> anyhow::Result<()>
-where
-	P: Prompter + 'static,
-{
-	conn.object_server()
-		.at(PROMPTER_PATH, DbusPrompterInterface(prompter))
-		.await?;
-	match conn.request_name(BUS_NAME).await {
-		Ok(()) => {}
-		Err(zbus::Error::NameTaken) => {
-			debug!("{BUS_NAME} already owned, chaining to upstream");
-		}
-		Err(e) => return Err(e.into()),
-	}
-	Ok(())
-}
 
 pub async fn ask(prompt: &str, description: String) -> anyhow::Result<()> {
-	let conn = Connection::session()
-		.await
-		.context("connecting to the session bus (DBUS_SESSION_BUS_ADDRESS)")?;
-	let proxy = DbusPrompterProxy::builder(&conn)
-		.destination(BUS_NAME)?
-		.path(PROMPTER_PATH)?
-		.build()
-		.await?;
-
-	let password = proxy
-		.prompt_text(
-			false,
-			prompt,
-			&description,
-			&[Source(Cow::Borrowed("remowt-askpass"))],
-		)
-		.await?;
+	let rpc = gateway::connect(&gateway::socket_path()?).await?;
+	let prompter = PromptEndpointsClient::<BifConfig>::wrap(rpc.remote(Address::User));
+	let password = Prompter::prompt_text(
+		&prompter,
+		false,
+		prompt,
+		&description,
+		&[Source(Cow::Borrowed("remowt-askpass"))],
+	)
+	.await?;
 
 	let mut out = std::io::stdout().lock();
 	out.write_all(password.as_bytes())?;

--- a/remowt/cmds/remowt-agent/src/editor.rs
+++ b/remowt/cmds/remowt-agent/src/editor.rs
@@ -3,87 +3,23 @@
 use std::time::Duration;
 use std::{fs, io};
 
-use anyhow::{bail, Context as _};
+use anyhow::{anyhow, bail, Context as _};
+use bifrostlink::declarative::RemoteEndpoints as _;
 use nix::libc;
 use remowt_link_shared::editor::EditorEndpointsClient;
+use remowt_link_shared::{gateway, Address, BifConfig};
 use tokio::process::Command;
-use zbus::{fdo, interface, proxy, Connection};
-
-use remowt_link_shared::BifConfig;
-
-const BUS_NAME: &str = "lach.RemowtEditor";
-const SERVICE_PATH: &str = "/lach/Editor";
-
-pub struct EditorService {
-	editor: EditorEndpointsClient<BifConfig>,
-}
 
-#[interface(name = "lach.RemowtEditor")]
-impl EditorService {
-	/// Attach the User's GUI to the nvim server at `socket_path` (on the remote),
-	/// blocking until the user is done.
-	async fn edit(&self, socket_path: String) -> fdo::Result<()> {
-		self.editor
-			.open_editor(socket_path)
-			.await
-			.map_err(|e| fdo::Error::Failed(format!("requesting editor on the User: {e}")))?
-			.map_err(|e| fdo::Error::Failed(format!("editor failed: {e}")))?;
-		Ok(())
-	}
-
-	async fn forward_tcp(&self, addr: String) -> fdo::Result<u16> {
-		let local = self
-			.editor
-			.expose_tcp(addr)
-			.await
-			.map_err(|e| fdo::Error::Failed(format!("requesting tcp forward on the User: {e}")))?
-			.map_err(|e| fdo::Error::Failed(format!("tcp forward failed: {e}")))?;
-		Ok(local)
-	}
-
-	async fn forward_udp(&self, addr: String) -> fdo::Result<u16> {
-		let local = self
-			.editor
-			.expose_udp(addr)
-			.await
-			.map_err(|e| fdo::Error::Failed(format!("requesting udp forward on the User: {e}")))?
-			.map_err(|e| fdo::Error::Failed(format!("udp forward failed: {e}")))?;
-		Ok(local)
-	}
-}
-
-pub async fn serve(
-	conn: &Connection,
-	editor: EditorEndpointsClient<BifConfig>,
-) -> anyhow::Result<()> {
-	conn.object_server()
-		.at(SERVICE_PATH, EditorService { editor })
-		.await?;
-	conn.request_name(BUS_NAME).await?;
-	Ok(())
-}
-
-#[proxy(interface = "lach.RemowtEditor")]
-trait RemowtEditor {
-	async fn edit(&self, socket_path: &str) -> fdo::Result<()>;
-	async fn forward_tcp(&self, addr: &str) -> fdo::Result<u16>;
-	async fn forward_udp(&self, addr: &str) -> fdo::Result<u16>;
-}
-
 pub async fn forward(udp: bool, addr: String) -> anyhow::Result<()> {
-	let conn = Connection::session()
-		.await
-		.context("connecting to the session bus (DBUS_SESSION_BUS_ADDRESS)")?;
-	let proxy = RemowtEditorProxy::builder(&conn)
-		.destination(BUS_NAME)?
-		.path(SERVICE_PATH)?
-		.build()
-		.await?;
+	let rpc = gateway::connect(&gateway::socket_path()?).await?;
+	let editor = EditorEndpointsClient::<BifConfig>::wrap(rpc.remote(Address::User));
 	let local = if udp {
-		proxy.forward_udp(&addr).await?
+		editor.expose_udp(addr).await
 	} else {
-		proxy.forward_tcp(&addr).await?
-	};
+		editor.expose_tcp(addr).await
+	}
+	.map_err(|e| anyhow!("requesting forward on the User: {e}"))?
+	.map_err(|e| anyhow!("forward failed: {e}"))?;
 	println!("{local}");
 	Ok(())
 }
@@ -125,15 +61,13 @@
 		.await
 		.context("nvim did not start its server")?;
 
-	let conn = Connection::session()
+	let rpc = gateway::connect(&gateway::socket_path()?).await?;
+	let editor = EditorEndpointsClient::<BifConfig>::wrap(rpc.remote(Address::User));
+	let result = editor
+		.open_editor(sock_str)
 		.await
-		.context("connecting to the session bus (DBUS_SESSION_BUS_ADDRESS)")?;
-	let proxy = RemowtEditorProxy::builder(&conn)
-		.destination(BUS_NAME)?
-		.path(SERVICE_PATH)?
-		.build()
-		.await?;
-	let result = proxy.edit(&sock_str).await;
+		.map_err(|e| anyhow!("requesting editor on the User: {e}"))
+		.and_then(|r| r.map_err(|e| anyhow!("editor failed: {e}")));
 
 	if tokio::time::timeout(Duration::from_secs(2), child.wait())
 		.await
@@ -143,8 +77,7 @@
 	}
 	let _ = fs::remove_file(&sock);
 
-	result?;
-	Ok(())
+	result
 }
 
 async fn wait_for_socket(path: &Path) -> anyhow::Result<()> {

--- a/remowt/cmds/remowt-agent/src/main.rs
+++ b/remowt/cmds/remowt-agent/src/main.rs
@@ -7,8 +7,8 @@
 use std::path::PathBuf;
 use std::sync::{Arc, Mutex, OnceLock};
 
+use bifrostlink::Rpc;
 use bifrostlink::declarative::RemoteEndpoints;
-use bifrostlink::Rpc;
 use bifrostlink_ports::stdio::from_stdio;
 use bifrostlink_ports::unix_socket::from_socket;
 use clap::Parser;
@@ -17,9 +17,9 @@
 	subprocess::Subprocess, systemd::Systemd,
 };
 use remowt_link_shared::iroh_tunnel::TunnelDialer;
-use remowt_link_shared::{editor::EditorEndpointsClient, Address, BifConfig};
-use remowt_polkit_shared::{emphasize, Identity, PidDisplay};
-use remowt_ui_prompt::bifrost::PromptEndpointsClient;
+use remowt_link_shared::{Address, BifConfig, gateway};
+use remowt_polkit_shared::{Identity, PidDisplay, emphasize};
+use remowt_ui_prompt::bifrost::{PromptEndpointsClient, serve_prompts};
 use remowt_ui_prompt::rofi::RofiPrompter;
 use remowt_ui_prompt::{PrependSourcePrompter, Prompter, Source};
 use tokio::fs;
@@ -29,13 +29,12 @@
 use tracing::{debug, trace};
 use zbus::fdo;
 use zbus::zvariant::{OwnedValue, Str};
-use zbus::{interface, Connection};
+use zbus::{Connection, interface};
 use zbus_polkit::policykit1::Subject;
 
 use self::helper::{Helper, SocketHelper, SuidHelper};
 
 pub mod askpass;
-pub mod bus;
 pub mod editor;
 pub mod helper;
 
@@ -132,19 +131,18 @@
 					0 => {
 						return Err(fdo::Error::AuthFailed(
 							"no identity to authenticate as".to_owned(),
-						))
+						));
 					}
 					1 => 0,
-					_ => {
-						prompter
-							.prompt_enum(
-								"Identity",
-								"Select identity to use for polkit authorization",
-								&identity_displays,
-								&[],
-							)
-							.await?
-					}
+					_ => prompter
+						.prompt_enum(
+							"Identity",
+							"Select identity to use for polkit authorization",
+							&identity_displays,
+							&[],
+						)
+						.await
+						.map_err(prompt_err)?,
 				};
 				debug!("identity chosen");
 
@@ -198,6 +196,15 @@
 	}
 }
 
+fn prompt_err(value: remowt_ui_prompt::Error) -> fdo::Error {
+	use remowt_ui_prompt::Error;
+	match value {
+		Error::Cancel => fdo::Error::NoReply("input was cancelled".to_owned()),
+		Error::Remote(e) => fdo::Error::NoReply(format!("remote error occured: {e}")),
+		Error::InputError(e) => fdo::Error::Failed(e),
+	}
+}
+
 const OBJ_PATH: &str = "/org/freedesktop/PolicyKit1/AuthenticationAgent";
 
 #[derive(Parser)]
@@ -268,10 +275,12 @@
 	};
 	register_auth_agent(&system_conn, Agent::new(helper, RofiPrompter)).await?;
 
-	let session_conn = Connection::session().await?;
-	askpass::serve(&session_conn, RofiPrompter).await?;
+	let mut rpc = Rpc::<BifConfig>::new(Address::User);
+	serve_prompts(&mut rpc, RofiPrompter);
+
+	gateway::serve(rpc.clone(), &gateway::local_socket()?).await?;
 
-	let _keep_alive = (system_conn, session_conn);
+	let _keep_alive = (system_conn, rpc);
 	pending().await
 }
 async fn main_real_agent(
@@ -298,13 +307,9 @@
 	remowt_plugin::host::serve(&mut rpc);
 
 	let user_prompter = PromptEndpointsClient::wrap(rpc.remote(Address::User));
-	let editor_client = EditorEndpointsClient::wrap(rpc.remote(Address::User));
-
-	let bus = bus::spawn().await?;
-	askpass::serve(&bus.conn, user_prompter.clone()).await?;
-	editor::serve(&bus.conn, editor_client).await?;
 
 	let helpers = tempfile::Builder::new().prefix("remowt-path.").tempdir()?;
+	let gateway_socket = helpers.path().join(gateway::SOCKET_NAME);
 	let exe = std::env::current_exe()?;
 	let askpass_helper = helpers.path().join("remowt-askpass");
 	let editor_helper = helpers.path().join("remowt-editor");
@@ -342,7 +347,7 @@
 		std::env::set_var("SSH_ASKPASS_REQUIRE", "force");
 		std::env::set_var("EDITOR", &editor_helper);
 		std::env::set_var("VISUAL", &editor_helper);
-		std::env::set_var("DBUS_SESSION_BUS_ADDRESS", &bus.address);
+		std::env::set_var(gateway::SOCKET_ENV, &gateway_socket);
 	}
 
 	let port = match path {
@@ -351,10 +356,9 @@
 	};
 	rpc.add_direct(Address::User, port, bifrostlink::Rtt(0));
 
+	gateway::serve(rpc.clone(), &gateway_socket).await?;
+
 	let polkit_conn = if !privileged && !local {
-		// The unprivileged agent doubles as a polkit authentication agent so
-		// `run0` (e.g. our own elevation) routes its prompt to the User over
-		// bifrost instead of failing on a tty-less session.
 		let conn = Connection::system().await?;
 		let helper = SocketHelper {
 			fallback: SuidHelper,
@@ -365,7 +369,7 @@
 		None
 	};
 
-	let _keep_alive = (bus, helpers, polkit_conn);
+	let _keep_alive = (helpers, polkit_conn);
 	pending().await
 }
 

--- a/remowt/cmds/remowt-ssh/Cargo.toml
+++ b/remowt/cmds/remowt-ssh/Cargo.toml
@@ -2,7 +2,7 @@
 name = "remowt-ssh"
 description = "SSH transport client for connecting to a remowt agent"
 version.workspace = true
-edition = "2021"
+edition.workspace = true
 license.workspace = true
 
 [dependencies]

--- a/remowt/cmds/remowt-ssh/src/main.rs
+++ b/remowt/cmds/remowt-ssh/src/main.rs
@@ -75,14 +75,8 @@
 			description: "".to_owned(),
 		},
 	);
-	if let Some(sess) = conn.ssh() {
-		serve_editor(
-			&mut rpc,
-			SshEditor {
-				sess,
-				conn: conn.clone(),
-			},
-		);
+	if conn.ssh().is_some() {
+		serve_editor(&mut rpc, SshEditor { conn: conn.clone() });
 	}
 
 	debug!("entering shell");

--- a/remowt/crates/polkit-shared/Cargo.toml
+++ b/remowt/crates/polkit-shared/Cargo.toml
@@ -2,7 +2,7 @@
 name = "remowt-polkit-shared"
 description = "Shared polkit/PAM types for remowt"
 version.workspace = true
-edition = "2021"
+edition.workspace = true
 license.workspace = true
 
 [dependencies]

--- a/remowt/crates/remowt-client/Cargo.toml
+++ b/remowt/crates/remowt-client/Cargo.toml
@@ -2,7 +2,7 @@
 name = "remowt-client"
 description = "russh-based client connection to a remowt agent"
 version.workspace = true
-edition = "2021"
+edition.workspace = true
 license.workspace = true
 
 [dependencies]

--- a/remowt/crates/remowt-client/src/editor.rs
+++ b/remowt/crates/remowt-client/src/editor.rs
@@ -6,14 +6,12 @@
 use remowt_endpoints::forward::ForwardClient;
 use remowt_link_shared::editor::{EditorBackend, Error};
 use remowt_link_shared::BifConfig;
-use russh::client::Handle;
 use tokio::net::{TcpListener, UdpSocket, UnixListener};
 use tracing::error;
 
-use crate::{Remowt, SshHandler};
+use crate::Remowt;
 
 pub struct SshEditor {
-	pub sess: Arc<Handle<SshHandler>>,
 	pub conn: Remowt,
 }
 impl EditorBackend for SshEditor {
@@ -22,21 +20,41 @@
 		let _ = std::fs::remove_file(&local);
 		let listener = UnixListener::bind(&local).map_err(|e| Error::Failed(e.to_string()))?;
 
-		let sess = self.sess.clone();
+		let conn = self.conn.clone();
 		let forward = tokio::spawn(async move {
 			loop {
 				let Ok((mut stream, _)) = listener.accept().await else {
 					break;
 				};
-				let sess = sess.clone();
+				let conn = conn.clone();
 				let remote = socket_path.clone();
 				tokio::spawn(async move {
-					match sess.channel_open_direct_streamlocal(remote).await {
-						Ok(ch) => {
-							let mut remote = ch.into_stream();
+					// Rides the iroh fast tunnel when established, else an
+					// ssh-forwarded unix socket.
+					let (forwarded, tunnel) = match conn.bind_fast_tunnel("editor", false).await {
+						Ok(v) => v,
+						Err(e) => {
+							error!("editor: bind tunnel failed: {e}");
+							return;
+						}
+					};
+					let fclient: ForwardClient<BifConfig> = conn.endpoints();
+					match fclient.connect_unix(tunnel, remote).await {
+						Ok(Ok(())) => {}
+						Ok(Err(e)) => {
+							error!("editor: agent connect_unix failed: {e}");
+							return;
+						}
+						Err(e) => {
+							error!("editor: connect_unix rpc failed: {e}");
+							return;
+						}
+					}
+					match forwarded.accept().await {
+						Ok(mut remote) => {
 							let _ = tokio::io::copy_bidirectional(&mut stream, &mut remote).await;
 						}
-						Err(e) => error!("opening direct-streamlocal to nvim failed: {e}"),
+						Err(e) => error!("editor: accept tunnel failed: {e}"),
 					}
 				});
 			}

--- a/remowt/crates/remowt-client/src/lib.rs
+++ b/remowt/crates/remowt-client/src/lib.rs
@@ -4,7 +4,7 @@
 use std::sync::atomic::AtomicU64;
 use std::sync::{Arc, Mutex};
 
-use anyhow::{anyhow, bail, ensure, Context as _, Result};
+use anyhow::{Context as _, Result, anyhow, bail, ensure};
 use bifrostlink::declarative::RemoteEndpoints;
 use bifrostlink::{Remote, Rpc, Rtt};
 use camino::{Utf8Path, Utf8PathBuf};
@@ -12,12 +12,12 @@
 use remowt_link_shared::plugin::PluginEndpointsClient;
 use remowt_link_shared::port::child_port;
 use remowt_link_shared::{Address, BifConfig};
-use russh::client::{connect, Config, Handle, Handler, Msg, Session};
+use russh::Channel;
+use russh::client::{Config, Handle, Handler, Msg, Session, connect};
+use russh::keys::agent::AgentIdentity;
 use russh::keys::agent::client::AgentClient;
-use russh::keys::agent::AgentIdentity;
 use russh::keys::check_known_hosts;
 use russh::keys::ssh_key::PublicKey;
-use russh::Channel;
 use tempfile::TempDir;
 use tokio::io::AsyncRead;
 use tokio::net::UnixListener;
@@ -287,8 +287,12 @@
 			.unwrap_or_else(|| env::var("USER").unwrap_or_else(|_| "root".to_owned()));
 
 		let subs: Subs = Arc::new(Mutex::new(HashMap::new()));
+		let config = Config {
+			nodelay: true,
+			..Config::default()
+		};
 		let mut sess = connect(
-			Arc::new(Config::default()),
+			Arc::new(config),
 			(hostname.clone(), port),
 			SshHandler {
 				host: hostname,
@@ -549,9 +553,7 @@
 		}
 	}
 
-	/// Bind a data tunnel, preferring the iroh fast path when it is up. Escalated tunnels
-	/// (the privileged agent, a separate process with no iroh connection of its own) and the
-	/// local transport always use the ssh/unix path.
+	/// Bind a data tunnel, preferring the iroh fast path when it is up.
 	pub async fn bind_fast_tunnel(
 		&self,
 		hint: &str,
@@ -586,7 +588,7 @@
 
 	async fn try_setup_iroh(&self) -> Result<()> {
 		use remowt_endpoints::iroh_tunnel::IrohTunnelClient;
-		use remowt_link_shared::iroh_tunnel::{build_endpoint, ssh_custom_addr, REMOWT_ALPN};
+		use remowt_link_shared::iroh_tunnel::{REMOWT_ALPN, build_endpoint, ssh_custom_addr};
 
 		let (listener, sock) = self.bind_runtime_unix("iroh-xport").await?;
 		let secret = iroh::SecretKey::generate();
@@ -605,7 +607,7 @@
 		);
 		let conn = ep.connect(addr, REMOWT_ALPN).await?;
 		ensure!(conn.remote_id() == agent_id, "iroh peer identity mismatch");
-		info!("iroh fast tunnel established");
+		debug!("iroh fast tunnel established");
 
 		let subs = self.0.iroh.subs.clone();
 		let accept_conn = conn.clone();
@@ -633,16 +635,6 @@
 						debug!("iroh accept loop ended: {e}");
 						break;
 					}
-				}
-			}
-		});
-
-		let log_conn = conn.clone();
-		tokio::spawn(async move {
-			tokio::time::sleep(std::time::Duration::from_secs(2)).await;
-			for p in log_conn.paths().iter() {
-				if p.is_selected() {
-					info!(rtt = ?p.rtt(), "iroh selected path: {}", p.remote_addr());
 				}
 			}
 		});
@@ -688,10 +680,10 @@
 }
 
 fn local_runtime_dir() -> Result<(Utf8PathBuf, Option<TempDir>)> {
-	if let Ok(dir) = env::var("XDG_RUNTIME_DIR") {
-		if !dir.is_empty() {
-			return Ok((Utf8PathBuf::from(dir), None));
-		}
+	if let Ok(dir) = env::var("XDG_RUNTIME_DIR")
+		&& !dir.is_empty()
+	{
+		return Ok((Utf8PathBuf::from(dir), None));
 	}
 	let tmp = tempfile::Builder::new()
 		.prefix("remowt.")

--- a/remowt/crates/remowt-endpoints/Cargo.toml
+++ b/remowt/crates/remowt-endpoints/Cargo.toml
@@ -2,7 +2,7 @@
 name = "remowt-endpoints"
 description = "Nix daemon proxy"
 version.workspace = true
-edition = "2021"
+edition.workspace = true
 license.workspace = true
 
 [dependencies]

--- a/remowt/crates/remowt-endpoints/src/forward.rs
+++ b/remowt/crates/remowt-endpoints/src/forward.rs
@@ -3,12 +3,12 @@
 use std::sync::atomic::{AtomicU64, Ordering};
 use std::sync::{Arc, Mutex};
 
+use bifrostlink::Config;
 use bifrostlink::declarative::endpoints;
-use bifrostlink::Config;
 use remowt_link_shared::iroh_tunnel::{TunnelAddr, TunnelDialer};
 use serde::{Deserialize, Serialize};
 use std::result::Result;
-use tokio::net::{TcpStream, UdpSocket};
+use tokio::net::{TcpStream, UdpSocket, UnixStream};
 use tracing::warn;
 
 #[derive(Serialize, Deserialize, Debug, thiserror::Error)]
@@ -107,6 +107,24 @@
 
 		Ok(session)
 	}
+
+	#[endpoints(id = 3)]
+	async fn connect_unix(&self, tunnel: TunnelAddr, path: String) -> Result<(), Error> {
+		let stream = self
+			.dialer
+			.connect_tunnel(&tunnel)
+			.await
+			.map_err(|e| Error::Tunnel(e.to_string()))?;
+		let unix = UnixStream::connect(&path)
+			.await
+			.map_err(|e| Error::Connect(path, e.to_string()))?;
+		tokio::spawn(async move {
+			let mut stream = stream;
+			let mut unix = unix;
+			let _ = tokio::io::copy_bidirectional(&mut stream, &mut unix).await;
+		});
+		Ok(())
+	}
 }
 
 fn unspecified_for(target: &SocketAddr) -> SocketAddr {

--- a/remowt/crates/remowt-link-shared/Cargo.toml
+++ b/remowt/crates/remowt-link-shared/Cargo.toml
@@ -2,7 +2,7 @@
 name = "remowt-link-shared"
 description = "Shared bifrostlink endpoint wiring for remowt"
 version.workspace = true
-edition = "2021"
+edition.workspace = true
 license.workspace = true
 
 [dependencies]
@@ -13,13 +13,13 @@
 serde = { workspace = true, features = ["derive"] }
 serde_json.workspace = true
 thiserror.workspace = true
-tokio = { workspace = true, features = ["fs", "io-util", "macros", "net", "sync", "rt"] }
+tokio = { workspace = true, features = ["fs", "io-util", "macros", "net", "rt", "sync"] }
 tokio-util = { workspace = true, features = ["codec"] }
 tracing.workspace = true
-remowt-ui-prompt.workspace = true
+uuid = { workspace = true, features = ["v4"] }
 
+futures.workspace = true
 iroh.workspace = true
 iroh-base.workspace = true
-noq-udp.workspace = true
 n0-watcher.workspace = true
-futures.workspace = true
+noq-udp.workspace = true

--- a/remowt/crates/remowt-link-shared/src/lib.rs
+++ b/remowt/crates/remowt-link-shared/src/lib.rs
@@ -7,6 +7,7 @@
 use serde::{Deserialize, Serialize};
 
 pub mod editor;
+pub mod gateway;
 pub mod iroh_tunnel;
 pub mod port;
 
@@ -16,6 +17,7 @@
 	Agent,
 	AgentPrivileged,
 	Plugin(u16),
+	Ephemeral(uuid::Uuid),
 }
 impl AddressT for Address {}
 
@@ -27,9 +29,6 @@
 	ListenerDead,
 	#[error("response: {0}")]
 	Response(String),
-
-	#[error(transparent)]
-	Ui(#[from] remowt_ui_prompt::Error),
 }
 
 impl From<ListenerForYourRequestHasBeenDeadError> for Error {
@@ -38,8 +37,8 @@
 	}
 }
 impl From<serde_json::Error> for Error {
-	fn from(_value: serde_json::Error) -> Self {
-		Self::ListenerDead
+	fn from(e: serde_json::Error) -> Self {
+		Self::Response(format!("{e}"))
 	}
 }
 impl From<Error> for ResponseError {

--- a/remowt/crates/remowt-link-shared/src/plugin.rs
+++ b/remowt/crates/remowt-link-shared/src/plugin.rs
@@ -10,6 +10,8 @@
 	BadName,
 	#[error("spawning plugin failed: {0}")]
 	Spawn(String),
+	#[error("failed to wait for connection, plugin process has died?")]
+	ConnectionWaitError,
 	#[error("agent is shutting down")]
 	Gone,
 }

--- a/remowt/crates/remowt-plugin/Cargo.toml
+++ b/remowt/crates/remowt-plugin/Cargo.toml
@@ -2,7 +2,7 @@
 name = "remowt-plugin"
 description = "Plugin host and protocol for remowt agents"
 version.workspace = true
-edition = "2021"
+edition.workspace = true
 license.workspace = true
 
 [dependencies]

--- a/remowt/crates/remowt-plugin/src/host.rs
+++ b/remowt/crates/remowt-plugin/src/host.rs
@@ -8,6 +8,7 @@
 use remowt_link_shared::plugin::{Error, PluginEndpoints, PluginHost};
 use remowt_link_shared::port::child_port;
 use remowt_link_shared::{Address, BifConfig};
+use tokio::select;
 
 pub fn serve(rpc: &mut Rpc<BifConfig>) {
 	let host = Host {
@@ -25,7 +26,7 @@
 }
 
 impl Host {
-	fn spawn(&self, id: u16, path: impl AsRef<OsStr>) -> Result<(), Error> {
+	async fn spawn(&self, id: u16, path: impl AsRef<OsStr>) -> Result<(), Error> {
 		let rpc = self.rpc.clone().upgrade().ok_or(Error::Gone)?;
 
 		let mut child = Command::new(path)
@@ -40,8 +41,20 @@
 		let stdout = child.stdout.take().expect("stdout piped");
 
 		let addr = Address::Plugin(id);
-		rpc.add_direct(addr, child_port(stdout, stdin), Rtt(0));
+		rpc.add_direct(addr.clone(), child_port(stdout, stdin), Rtt(0));
+
+		select! {
+			e = rpc.wait_for_connection_to(addr) => {
+				if e.is_err() {
+					return Err(Error::ConnectionWaitError)
+				}
+			},
+			_ = child.wait() => {
+				return Err(Error::ConnectionWaitError)
+			}
+		};
 		self.children.lock().expect("not poisoned").push(child);
+
 		Ok(())
 	}
 }
@@ -58,13 +71,13 @@
 		let dir = exe
 			.parent()
 			.ok_or_else(|| Error::Spawn("primary agent has no parent directory".to_owned()))?;
-		self.spawn(id, dir.join(&name))
+		self.spawn(id, dir.join(&name)).await
 	}
 
 	async fn load_plugin_path(&self, id: u16, path: String) -> Result<(), Error> {
 		if path.is_empty() || path.contains('\0') {
 			return Err(Error::BadName);
 		}
-		self.spawn(id, path)
+		self.spawn(id, path).await
 	}
 }

--- a/remowt/crates/remowt-ui-prompt/src/bifrost.rs
+++ b/remowt/crates/remowt-ui-prompt/src/bifrost.rs
@@ -103,7 +103,6 @@
 where
 	P: Prompter + Send + Sync + 'static,
 	C: Config,
-	C::Error: From<Error>,
 {
 	PromptEndpoints(prompt).register_endpoints(rpc);
 }

--- a/rust-toolchain.toml
+++ b/rust-toolchain.toml
@@ -1,3 +1,8 @@
 [toolchain]
 channel = "stable"
 components = ["rustfmt", "clippy", "rust-analyzer", "rust-src"]
+targets = [
+	"x86_64-unknown-linux-musl",
+	"aarch64-unknown-linux-musl",
+	"armv7-unknown-linux-musleabihf",
+]