diff --git a/crates/editor/src/editor_tests.rs b/crates/editor/src/editor_tests.rs
index 1e1c13d9ab383d2c7b7a6546a1b49eaf47107a74..f910ba69630fe7687bc1c8317274f14d2cfaacb1 100644
--- a/crates/editor/src/editor_tests.rs
+++ b/crates/editor/src/editor_tests.rs
@@ -8320,6 +8320,7 @@ async fn test_language_server_restart_due_to_settings_change(cx: &mut gpui::Test
         project_settings.lsp.insert(
             "Some other server name".into(),
             LspSettings {
+                binary: None,
                 settings: None,
                 initialization_options: Some(json!({
                     "some other init value": false
@@ -8338,6 +8339,7 @@ async fn test_language_server_restart_due_to_settings_change(cx: &mut gpui::Test
         project_settings.lsp.insert(
             language_server_name.into(),
             LspSettings {
+                binary: None,
                 settings: None,
                 initialization_options: Some(json!({
                     "anotherInitValue": false
@@ -8356,6 +8358,7 @@ async fn test_language_server_restart_due_to_settings_change(cx: &mut gpui::Test
         project_settings.lsp.insert(
             language_server_name.into(),
             LspSettings {
+                binary: None,
                 settings: None,
                 initialization_options: Some(json!({
                     "anotherInitValue": false
@@ -8374,6 +8377,7 @@ async fn test_language_server_restart_due_to_settings_change(cx: &mut gpui::Test
         project_settings.lsp.insert(
             language_server_name.into(),
             LspSettings {
+                binary: None,
                 settings: None,
                 initialization_options: None,
             },
diff --git a/crates/extension/src/extension_lsp_adapter.rs b/crates/extension/src/extension_lsp_adapter.rs
index 41bfa9b29e9392d4f7c1b36b865b387a75864f8f..4f6206683d768d4a60ce537758f3d8757f3caf28 100644
--- a/crates/extension/src/extension_lsp_adapter.rs
+++ b/crates/extension/src/extension_lsp_adapter.rs
@@ -19,7 +19,7 @@ pub struct ExtensionLspAdapter {
     pub(crate) host: Arc<WasmHost>,
 }
 
-#[async_trait]
+#[async_trait(?Send)]
 impl LspAdapter for ExtensionLspAdapter {
     fn name(&self) -> LanguageServerName {
         LanguageServerName(self.config.name.clone().into())
diff --git a/crates/language/src/language.rs b/crates/language/src/language.rs
index 37e28d5cd679e238e3d0a91c4643118e20b1a200..b44bf830172446d6910b3415da5e12281696940d 100644
--- a/crates/language/src/language.rs
+++ b/crates/language/src/language.rs
@@ -282,7 +282,7 @@ pub trait LspAdapterDelegate: Send + Sync {
     async fn read_text_file(&self, path: PathBuf) -> Result<String>;
 }
 
-#[async_trait]
+#[async_trait(?Send)]
 pub trait LspAdapter: 'static + Send + Sync {
     fn name(&self) -> LanguageServerName;
 
@@ -306,7 +306,7 @@ pub trait LspAdapter: 'static + Send + Sync {
             // We only want to cache when we fall back to the global one,
             // because we don't want to download and overwrite our global one
             // for each worktree we might have open.
-            if let Some(binary) = self.check_if_user_installed(delegate.as_ref()).await {
+            if let Some(binary) = self.check_if_user_installed(delegate.as_ref(), cx).await {
                 log::info!(
                     "found user-installed language server for {}. path: {:?}, arguments: {:?}",
                     language.name(),
@@ -380,6 +380,7 @@ pub trait LspAdapter: 'static + Send + Sync {
     async fn check_if_user_installed(
         &self,
         _: &dyn LspAdapterDelegate,
+        _: &AsyncAppContext,
     ) -> Option<LanguageServerBinary> {
         None
     }
@@ -1457,7 +1458,7 @@ impl Default for FakeLspAdapter {
 }
 
 #[cfg(any(test, feature = "test-support"))]
-#[async_trait]
+#[async_trait(?Send)]
 impl LspAdapter for FakeLspAdapter {
     fn name(&self) -> LanguageServerName {
         LanguageServerName(self.name.into())
diff --git a/crates/languages/src/astro.rs b/crates/languages/src/astro.rs
index 2ed3853e075d56b30693c589e19d0c28b71a50b8..95aa150d61648154fa7295b28407b13c79d205b5 100644
--- a/crates/languages/src/astro.rs
+++ b/crates/languages/src/astro.rs
@@ -30,7 +30,7 @@ impl AstroLspAdapter {
     }
 }
 
-#[async_trait]
+#[async_trait(?Send)]
 impl LspAdapter for AstroLspAdapter {
     fn name(&self) -> LanguageServerName {
         LanguageServerName("astro-language-server".into())
diff --git a/crates/languages/src/c.rs b/crates/languages/src/c.rs
index 28ceedf7ad181f6f897fc605b4d1884366fb7d70..7c4d992c236810bcc5df13facc264878101bbdf6 100644
--- a/crates/languages/src/c.rs
+++ b/crates/languages/src/c.rs
@@ -14,7 +14,7 @@ use util::{
 
 pub struct CLspAdapter;
 
-#[async_trait]
+#[async_trait(?Send)]
 impl super::LspAdapter for CLspAdapter {
     fn name(&self) -> LanguageServerName {
         LanguageServerName("clangd".into())
diff --git a/crates/languages/src/clojure.rs b/crates/languages/src/clojure.rs
index 139d741db28decb32c61a06a6b2d17940f36d222..6fae33636c9000f2c4ab04df2e005cc34f016a5e 100644
--- a/crates/languages/src/clojure.rs
+++ b/crates/languages/src/clojure.rs
@@ -12,7 +12,7 @@ use util::{
 #[derive(Copy, Clone)]
 pub struct ClojureLspAdapter;
 
-#[async_trait]
+#[async_trait(?Send)]
 impl super::LspAdapter for ClojureLspAdapter {
     fn name(&self) -> LanguageServerName {
         LanguageServerName("clojure-lsp".into())
diff --git a/crates/languages/src/csharp.rs b/crates/languages/src/csharp.rs
index 297e397cdd57a3abed9e537497c0a570f82a8d62..4d9f26328ce4d48cf2ea98e96bee87461ff0b46e 100644
--- a/crates/languages/src/csharp.rs
+++ b/crates/languages/src/csharp.rs
@@ -15,7 +15,7 @@ use util::{github::GitHubLspBinaryVersion, ResultExt};
 
 pub struct OmniSharpAdapter;
 
-#[async_trait]
+#[async_trait(?Send)]
 impl super::LspAdapter for OmniSharpAdapter {
     fn name(&self) -> LanguageServerName {
         LanguageServerName("OmniSharp".into())
diff --git a/crates/languages/src/css.rs b/crates/languages/src/css.rs
index 8baae447035c34ba035f245ca3cf3896aee54db5..fbc856efbd27dd0d160e4045c00a5282d5cb1277 100644
--- a/crates/languages/src/css.rs
+++ b/crates/languages/src/css.rs
@@ -31,7 +31,7 @@ impl CssLspAdapter {
     }
 }
 
-#[async_trait]
+#[async_trait(?Send)]
 impl LspAdapter for CssLspAdapter {
     fn name(&self) -> LanguageServerName {
         LanguageServerName("vscode-css-language-server".into())
diff --git a/crates/languages/src/dart.rs b/crates/languages/src/dart.rs
index 5c0d0c21a19017e2c7e3d81349c37db258c89aa2..12ac699ee0ecbb2175cbf4c548e8a5a7f20b7a09 100644
--- a/crates/languages/src/dart.rs
+++ b/crates/languages/src/dart.rs
@@ -13,7 +13,7 @@ use std::{
 
 pub struct DartLanguageServer;
 
-#[async_trait]
+#[async_trait(?Send)]
 impl LspAdapter for DartLanguageServer {
     fn name(&self) -> LanguageServerName {
         LanguageServerName("dart".into())
diff --git a/crates/languages/src/deno.rs b/crates/languages/src/deno.rs
index abb9dccbfb3779afa96f2543b5b2756260e9f072..1aed3930fba138886be07c013929e8a2b5b95a3b 100644
--- a/crates/languages/src/deno.rs
+++ b/crates/languages/src/deno.rs
@@ -56,7 +56,7 @@ impl DenoLspAdapter {
     }
 }
 
-#[async_trait]
+#[async_trait(?Send)]
 impl LspAdapter for DenoLspAdapter {
     fn name(&self) -> LanguageServerName {
         LanguageServerName("deno-language-server".into())
diff --git a/crates/languages/src/dockerfile.rs b/crates/languages/src/dockerfile.rs
index c3cd4411e925aad865055f37f5a50eb1ef61fe33..35ee844d89f3b4a4f2f696494799512a0b595df0 100644
--- a/crates/languages/src/dockerfile.rs
+++ b/crates/languages/src/dockerfile.rs
@@ -29,7 +29,7 @@ impl DockerfileLspAdapter {
     }
 }
 
-#[async_trait]
+#[async_trait(?Send)]
 impl LspAdapter for DockerfileLspAdapter {
     fn name(&self) -> LanguageServerName {
         LanguageServerName("docker-langserver".into())
diff --git a/crates/languages/src/elixir.rs b/crates/languages/src/elixir.rs
index 471f466c84645ba1afd4fa3aeafff16e0cbef580..b4479c0fd8a2ce69726d9c4603660365130fc037 100644
--- a/crates/languages/src/elixir.rs
+++ b/crates/languages/src/elixir.rs
@@ -65,7 +65,7 @@ impl Settings for ElixirSettings {
 
 pub struct ElixirLspAdapter;
 
-#[async_trait]
+#[async_trait(?Send)]
 impl LspAdapter for ElixirLspAdapter {
     fn name(&self) -> LanguageServerName {
         LanguageServerName("elixir-ls".into())
@@ -292,7 +292,7 @@ async fn get_cached_server_binary_elixir_ls(
 
 pub struct NextLspAdapter;
 
-#[async_trait]
+#[async_trait(?Send)]
 impl LspAdapter for NextLspAdapter {
     fn name(&self) -> LanguageServerName {
         LanguageServerName("next-ls".into())
@@ -446,7 +446,7 @@ pub struct LocalLspAdapter {
     pub arguments: Vec<String>,
 }
 
-#[async_trait]
+#[async_trait(?Send)]
 impl LspAdapter for LocalLspAdapter {
     fn name(&self) -> LanguageServerName {
         LanguageServerName("local-ls".into())
diff --git a/crates/languages/src/elm.rs b/crates/languages/src/elm.rs
index 37b156db9179da1eb73037dbc09a827abac4340b..5f99649ee937422066ad6de925f1730d16de0cb2 100644
--- a/crates/languages/src/elm.rs
+++ b/crates/languages/src/elm.rs
@@ -34,7 +34,7 @@ impl ElmLspAdapter {
     }
 }
 
-#[async_trait]
+#[async_trait(?Send)]
 impl LspAdapter for ElmLspAdapter {
     fn name(&self) -> LanguageServerName {
         LanguageServerName(SERVER_NAME.into())
diff --git a/crates/languages/src/erlang.rs b/crates/languages/src/erlang.rs
index 2b6d33ed41e884224f8886406c588db85276e7da..a868055703bbc5dbfd20994c272951d4371fe846 100644
--- a/crates/languages/src/erlang.rs
+++ b/crates/languages/src/erlang.rs
@@ -6,7 +6,7 @@ use std::{any::Any, path::PathBuf};
 
 pub struct ErlangLspAdapter;
 
-#[async_trait]
+#[async_trait(?Send)]
 impl LspAdapter for ErlangLspAdapter {
     fn name(&self) -> LanguageServerName {
         LanguageServerName("erlang_ls".into())
diff --git a/crates/languages/src/gleam.rs b/crates/languages/src/gleam.rs
index 9eb22c179e9d50189d46ac20f6af6fcc945248d5..e9a5b6a48a6d82f23b6fc6260dae09458d7d4a07 100644
--- a/crates/languages/src/gleam.rs
+++ b/crates/languages/src/gleam.rs
@@ -21,7 +21,7 @@ fn server_binary_arguments() -> Vec<OsString> {
 
 pub struct GleamLspAdapter;
 
-#[async_trait]
+#[async_trait(?Send)]
 impl LspAdapter for GleamLspAdapter {
     fn name(&self) -> LanguageServerName {
         LanguageServerName("gleam".into())
diff --git a/crates/languages/src/go.rs b/crates/languages/src/go.rs
index 4710facc4bdcef46362b5ac65666ec0af6c1d657..505ba7bd0461263b7e9f8ae0259354862643f883 100644
--- a/crates/languages/src/go.rs
+++ b/crates/languages/src/go.rs
@@ -32,7 +32,7 @@ lazy_static! {
     static ref GOPLS_VERSION_REGEX: Regex = Regex::new(r"\d+\.\d+\.\d+").unwrap();
 }
 
-#[async_trait]
+#[async_trait(?Send)]
 impl super::LspAdapter for GoLspAdapter {
     fn name(&self) -> LanguageServerName {
         LanguageServerName("gopls".into())
@@ -57,6 +57,7 @@ impl super::LspAdapter for GoLspAdapter {
     async fn check_if_user_installed(
         &self,
         delegate: &dyn LspAdapterDelegate,
+        _: &AsyncAppContext,
     ) -> Option<LanguageServerBinary> {
         let env = delegate.shell_env().await;
         let path = delegate.which("gopls".as_ref()).await?;
diff --git a/crates/languages/src/haskell.rs b/crates/languages/src/haskell.rs
index 0e8c59d623cb9f7d7b37028720883877c266f6c6..224910a04da559c75e9c7749d28ea284c54531c7 100644
--- a/crates/languages/src/haskell.rs
+++ b/crates/languages/src/haskell.rs
@@ -6,7 +6,7 @@ use std::{any::Any, path::PathBuf};
 
 pub struct HaskellLanguageServer;
 
-#[async_trait]
+#[async_trait(?Send)]
 impl LspAdapter for HaskellLanguageServer {
     fn name(&self) -> LanguageServerName {
         LanguageServerName("hls".into())
diff --git a/crates/languages/src/html.rs b/crates/languages/src/html.rs
index 713a432de312388720c632baa89498f0a64ef2d3..3935d20456bb733573bbfcfb78c6b7a58a81a345 100644
--- a/crates/languages/src/html.rs
+++ b/crates/languages/src/html.rs
@@ -31,7 +31,7 @@ impl HtmlLspAdapter {
     }
 }
 
-#[async_trait]
+#[async_trait(?Send)]
 impl LspAdapter for HtmlLspAdapter {
     fn name(&self) -> LanguageServerName {
         LanguageServerName("vscode-html-language-server".into())
diff --git a/crates/languages/src/json.rs b/crates/languages/src/json.rs
index 1813f4c270536678b82aa9ffd7914f225ea231f2..1b32876155f3aebdf29c1b4e881ef05e9c33cdbf 100644
--- a/crates/languages/src/json.rs
+++ b/crates/languages/src/json.rs
@@ -83,7 +83,7 @@ impl JsonLspAdapter {
     }
 }
 
-#[async_trait]
+#[async_trait(?Send)]
 impl LspAdapter for JsonLspAdapter {
     fn name(&self) -> LanguageServerName {
         LanguageServerName("json-language-server".into())
diff --git a/crates/languages/src/lua.rs b/crates/languages/src/lua.rs
index cad9004480bb5c2fafc04e054f23292b24106ee1..d0f60378ff7639e19c28aee71bfa5a18aa3b81d1 100644
--- a/crates/languages/src/lua.rs
+++ b/crates/languages/src/lua.rs
@@ -16,7 +16,7 @@ use util::{
 #[derive(Copy, Clone)]
 pub struct LuaLspAdapter;
 
-#[async_trait]
+#[async_trait(?Send)]
 impl super::LspAdapter for LuaLspAdapter {
     fn name(&self) -> LanguageServerName {
         LanguageServerName("lua-language-server".into())
diff --git a/crates/languages/src/nu.rs b/crates/languages/src/nu.rs
index 691ecfd52fa82fa00b7ccf24903460d43b48530a..58c8e30dc3e6f3256ef116a4cb8e463456fad60b 100644
--- a/crates/languages/src/nu.rs
+++ b/crates/languages/src/nu.rs
@@ -6,7 +6,7 @@ use std::{any::Any, path::PathBuf};
 
 pub struct NuLanguageServer;
 
-#[async_trait]
+#[async_trait(?Send)]
 impl LspAdapter for NuLanguageServer {
     fn name(&self) -> LanguageServerName {
         LanguageServerName("nu".into())
diff --git a/crates/languages/src/ocaml.rs b/crates/languages/src/ocaml.rs
index 0dc4bfcd2b94613dfe6dec159a1362ea51547d6d..74f5f602998efcc34ef36e15e5584090a5d5d7f7 100644
--- a/crates/languages/src/ocaml.rs
+++ b/crates/languages/src/ocaml.rs
@@ -12,7 +12,7 @@ const OPERATOR_CHAR: [char; 17] = [
 
 pub struct OCamlLspAdapter;
 
-#[async_trait]
+#[async_trait(?Send)]
 impl LspAdapter for OCamlLspAdapter {
     fn name(&self) -> LanguageServerName {
         LanguageServerName("ocamllsp".into())
diff --git a/crates/languages/src/php.rs b/crates/languages/src/php.rs
index 14056142106fe9df1bdebb093fb16f0f8121c175..0fcb2b3b23dab742787ebadd641792ba06d095e1 100644
--- a/crates/languages/src/php.rs
+++ b/crates/languages/src/php.rs
@@ -34,7 +34,7 @@ impl IntelephenseLspAdapter {
     }
 }
 
-#[async_trait]
+#[async_trait(?Send)]
 impl LspAdapter for IntelephenseLspAdapter {
     fn name(&self) -> LanguageServerName {
         LanguageServerName("intelephense".into())
diff --git a/crates/languages/src/prisma.rs b/crates/languages/src/prisma.rs
index 0731cc8d11a5c6ddab1e0715b157cc6fd9e80325..17fcb5fd3f26f7c9fb70c669cca748966a5e2136 100644
--- a/crates/languages/src/prisma.rs
+++ b/crates/languages/src/prisma.rs
@@ -29,7 +29,7 @@ impl PrismaLspAdapter {
     }
 }
 
-#[async_trait]
+#[async_trait(?Send)]
 impl LspAdapter for PrismaLspAdapter {
     fn name(&self) -> LanguageServerName {
         LanguageServerName("prisma-language-server".into())
diff --git a/crates/languages/src/purescript.rs b/crates/languages/src/purescript.rs
index df3cb5b5a9b753d3213f60ed6749a34235f4be79..8787826a188830bd07a5246b8dd3c8c4ecdff35b 100644
--- a/crates/languages/src/purescript.rs
+++ b/crates/languages/src/purescript.rs
@@ -33,7 +33,7 @@ impl PurescriptLspAdapter {
     }
 }
 
-#[async_trait]
+#[async_trait(?Send)]
 impl LspAdapter for PurescriptLspAdapter {
     fn name(&self) -> LanguageServerName {
         LanguageServerName("purescript-language-server".into())
diff --git a/crates/languages/src/python.rs b/crates/languages/src/python.rs
index bf1cae7d9df5fa07713b726c68750aaa20bf6a95..bd9eab3ced4f290fd6577afcfecc1060c1018836 100644
--- a/crates/languages/src/python.rs
+++ b/crates/languages/src/python.rs
@@ -28,7 +28,7 @@ impl PythonLspAdapter {
     }
 }
 
-#[async_trait]
+#[async_trait(?Send)]
 impl LspAdapter for PythonLspAdapter {
     fn name(&self) -> LanguageServerName {
         LanguageServerName("pyright".into())
diff --git a/crates/languages/src/ruby.rs b/crates/languages/src/ruby.rs
index ced781bfbf2dbf13f6a57b5a6da05e58040f5a52..8a634b6bc48bd50b3fbb4bb2c2a66dfee2170361 100644
--- a/crates/languages/src/ruby.rs
+++ b/crates/languages/src/ruby.rs
@@ -6,7 +6,7 @@ use std::{any::Any, path::PathBuf, sync::Arc};
 
 pub struct RubyLanguageServer;
 
-#[async_trait]
+#[async_trait(?Send)]
 impl LspAdapter for RubyLanguageServer {
     fn name(&self) -> LanguageServerName {
         LanguageServerName("solargraph".into())
diff --git a/crates/languages/src/rust.rs b/crates/languages/src/rust.rs
index 2d3925e7d61554d9f3d44803c4302f9f0e562a8d..2a58bc601559d5b4811708e01300d52310050428 100644
--- a/crates/languages/src/rust.rs
+++ b/crates/languages/src/rust.rs
@@ -2,12 +2,15 @@ use anyhow::{anyhow, bail, Result};
 use async_compression::futures::bufread::GzipDecoder;
 use async_trait::async_trait;
 use futures::{io::BufReader, StreamExt};
+use gpui::AsyncAppContext;
 pub use language::*;
 use lazy_static::lazy_static;
 use lsp::LanguageServerBinary;
+use project::project_settings::ProjectSettings;
 use regex::Regex;
+use settings::Settings;
 use smol::fs::{self, File};
-use std::{any::Any, borrow::Cow, env::consts, path::PathBuf, str, sync::Arc};
+use std::{any::Any, borrow::Cow, env::consts, path::PathBuf, sync::Arc};
 use util::{
     async_maybe,
     fs::remove_matching,
@@ -17,10 +20,41 @@ use util::{
 
 pub struct RustLspAdapter;
 
-#[async_trait]
+impl RustLspAdapter {
+    const SERVER_NAME: &'static str = "rust-analyzer";
+}
+
+#[async_trait(?Send)]
 impl LspAdapter for RustLspAdapter {
     fn name(&self) -> LanguageServerName {
-        LanguageServerName("rust-analyzer".into())
+        LanguageServerName(Self::SERVER_NAME.into())
+    }
+
+    async fn check_if_user_installed(
+        &self,
+        _delegate: &dyn LspAdapterDelegate,
+        cx: &AsyncAppContext,
+    ) -> Option<LanguageServerBinary> {
+        let binary = cx
+            .update(|cx| {
+                ProjectSettings::get_global(cx)
+                    .lsp
+                    .get(Self::SERVER_NAME)
+                    .and_then(|s| s.binary.clone())
+            })
+            .ok()??;
+
+        let path = binary.path?;
+        Some(LanguageServerBinary {
+            path: path.into(),
+            arguments: binary
+                .arguments
+                .unwrap_or_default()
+                .iter()
+                .map(|arg| arg.into())
+                .collect(),
+            env: None,
+        })
     }
 
     async fn fetch_latest_server_version(
diff --git a/crates/languages/src/svelte.rs b/crates/languages/src/svelte.rs
index aff9a6db7d3a3a25d8dc08a6b005df469f7e5a33..721c2e6640d9892ccbcf32c8d7b09d7f047a9fdd 100644
--- a/crates/languages/src/svelte.rs
+++ b/crates/languages/src/svelte.rs
@@ -30,7 +30,7 @@ impl SvelteLspAdapter {
     }
 }
 
-#[async_trait]
+#[async_trait(?Send)]
 impl LspAdapter for SvelteLspAdapter {
     fn name(&self) -> LanguageServerName {
         LanguageServerName("svelte-language-server".into())
diff --git a/crates/languages/src/tailwind.rs b/crates/languages/src/tailwind.rs
index 69ac629c7cd86a07778199261c6ef749a015e301..c49f5d859036103e9f10a8b531f3a3d8a8d2ea69 100644
--- a/crates/languages/src/tailwind.rs
+++ b/crates/languages/src/tailwind.rs
@@ -32,7 +32,7 @@ impl TailwindLspAdapter {
     }
 }
 
-#[async_trait]
+#[async_trait(?Send)]
 impl LspAdapter for TailwindLspAdapter {
     fn name(&self) -> LanguageServerName {
         LanguageServerName("tailwindcss-language-server".into())
diff --git a/crates/languages/src/terraform.rs b/crates/languages/src/terraform.rs
index d201b8aeffe5b4628c2b12f8147bf967d169a9b0..d5973cc5daaae190d16d0a5420c150f80d1f04f3 100644
--- a/crates/languages/src/terraform.rs
+++ b/crates/languages/src/terraform.rs
@@ -19,7 +19,7 @@ fn terraform_ls_binary_arguments() -> Vec<OsString> {
 
 pub struct TerraformLspAdapter;
 
-#[async_trait]
+#[async_trait(?Send)]
 impl LspAdapter for TerraformLspAdapter {
     fn name(&self) -> LanguageServerName {
         LanguageServerName("terraform-ls".into())
diff --git a/crates/languages/src/toml.rs b/crates/languages/src/toml.rs
index 1ca6bb8d1d2e59e06569d34da8410ede05c09e05..dee6a19aa7ccffffe66e9882549b465e219c7ace 100644
--- a/crates/languages/src/toml.rs
+++ b/crates/languages/src/toml.rs
@@ -12,7 +12,7 @@ use util::{github::GitHubLspBinaryVersion, ResultExt};
 
 pub struct TaploLspAdapter;
 
-#[async_trait]
+#[async_trait(?Send)]
 impl LspAdapter for TaploLspAdapter {
     fn name(&self) -> LanguageServerName {
         LanguageServerName("taplo-ls".into())
diff --git a/crates/languages/src/typescript.rs b/crates/languages/src/typescript.rs
index b05a370a6cff8093f556c7c32c174a47a96e8c25..bf220130a9679ca3eb83c1c3d61f0499738e066f 100644
--- a/crates/languages/src/typescript.rs
+++ b/crates/languages/src/typescript.rs
@@ -50,7 +50,7 @@ struct TypeScriptVersions {
     server_version: String,
 }
 
-#[async_trait]
+#[async_trait(?Send)]
 impl LspAdapter for TypeScriptLspAdapter {
     fn name(&self) -> LanguageServerName {
         LanguageServerName("typescript-language-server".into())
@@ -224,7 +224,7 @@ impl EsLintLspAdapter {
     }
 }
 
-#[async_trait]
+#[async_trait(?Send)]
 impl LspAdapter for EsLintLspAdapter {
     fn workspace_configuration(&self, workspace_root: &Path, cx: &mut AppContext) -> Value {
         let eslint_user_settings = ProjectSettings::get_global(cx)
diff --git a/crates/languages/src/uiua.rs b/crates/languages/src/uiua.rs
index 229c0804f51f22d718a1f23a12086c60ae2784b7..8833673a2725177370e2bb5a20ce1182f0b700c5 100644
--- a/crates/languages/src/uiua.rs
+++ b/crates/languages/src/uiua.rs
@@ -6,7 +6,7 @@ use std::{any::Any, path::PathBuf};
 
 pub struct UiuaLanguageServer;
 
-#[async_trait]
+#[async_trait(?Send)]
 impl LspAdapter for UiuaLanguageServer {
     fn name(&self) -> LanguageServerName {
         LanguageServerName("uiua".into())
diff --git a/crates/languages/src/vue.rs b/crates/languages/src/vue.rs
index f90364c66b3e37c03a0fb41ee7951eef4d729420..e29516a5df2e5067908ca9ef2272caac2863b334 100644
--- a/crates/languages/src/vue.rs
+++ b/crates/languages/src/vue.rs
@@ -38,7 +38,7 @@ impl VueLspAdapter {
         }
     }
 }
-#[async_trait]
+#[async_trait(?Send)]
 impl super::LspAdapter for VueLspAdapter {
     fn name(&self) -> LanguageServerName {
         LanguageServerName("vue-language-server".into())
diff --git a/crates/languages/src/yaml.rs b/crates/languages/src/yaml.rs
index fe115b09b3cb81d9213b30e9407fa22f3d34b8a6..5c288c22b6111149babd246874c233464b2f49e3 100644
--- a/crates/languages/src/yaml.rs
+++ b/crates/languages/src/yaml.rs
@@ -33,7 +33,7 @@ impl YamlLspAdapter {
     }
 }
 
-#[async_trait]
+#[async_trait(?Send)]
 impl LspAdapter for YamlLspAdapter {
     fn name(&self) -> LanguageServerName {
         LanguageServerName("yaml-language-server".into())
diff --git a/crates/languages/src/zig.rs b/crates/languages/src/zig.rs
index 3e6f3b8824469873a25196807dfdbedb68f2283c..8d6c836f22c3f3f116bc0e0ed888da683956135f 100644
--- a/crates/languages/src/zig.rs
+++ b/crates/languages/src/zig.rs
@@ -3,6 +3,7 @@ use async_compression::futures::bufread::GzipDecoder;
 use async_tar::Archive;
 use async_trait::async_trait;
 use futures::{io::BufReader, StreamExt};
+use gpui::AsyncAppContext;
 use language::{LanguageServerName, LspAdapter, LspAdapterDelegate};
 use lsp::LanguageServerBinary;
 use smol::fs;
@@ -14,7 +15,7 @@ use util::{github::GitHubLspBinaryVersion, ResultExt};
 
 pub struct ZlsAdapter;
 
-#[async_trait]
+#[async_trait(?Send)]
 impl LspAdapter for ZlsAdapter {
     fn name(&self) -> LanguageServerName {
         LanguageServerName("zls".into())
@@ -43,6 +44,7 @@ impl LspAdapter for ZlsAdapter {
     async fn check_if_user_installed(
         &self,
         delegate: &dyn LspAdapterDelegate,
+        _cx: &AsyncAppContext,
     ) -> Option<LanguageServerBinary> {
         let env = delegate.shell_env().await;
         let path = delegate.which("zls".as_ref()).await?;
diff --git a/crates/project/src/project_settings.rs b/crates/project/src/project_settings.rs
index 2d659725a7d1db64e4a01eafa38bebc9ec369af9..9e0c595ee64ff6c47f192246bdc42e86a0c21fc5 100644
--- a/crates/project/src/project_settings.rs
+++ b/crates/project/src/project_settings.rs
@@ -41,9 +41,16 @@ pub enum GitGutterSetting {
     Hide,
 }
 
+#[derive(Clone, Debug, Default, Serialize, Deserialize, PartialEq, Eq, JsonSchema)]
+pub struct BinarySettings {
+    pub path: Option<String>,
+    pub arguments: Option<Vec<String>>,
+}
+
 #[derive(Clone, Debug, Serialize, Deserialize, PartialEq, Eq, JsonSchema)]
 #[serde(rename_all = "snake_case")]
 pub struct LspSettings {
+    pub binary: Option<BinarySettings>,
     pub initialization_options: Option<serde_json::Value>,
     pub settings: Option<serde_json::Value>,
 }