From 0f738646939e3c926dc376c7d0aea45f7dfb2c33 Mon Sep 17 00:00:00 2001
From: Konstantin Fickel <mail@konstantinfickel.de>
Date: Sun, 19 Apr 2026 17:58:54 +0200
Subject: [PATCH] feat: add zed extension

---
 flake.nix                    |  35 +++-
 zed-extension/Cargo.lock     | 341 +++++++++++++++++++++++++++++++++++
 zed-extension/Cargo.toml     |  10 +
 zed-extension/extension.toml |  11 ++
 zed-extension/src/lib.rs     |  23 +++
 5 files changed, 419 insertions(+), 1 deletion(-)
 create mode 100644 zed-extension/Cargo.lock
 create mode 100644 zed-extension/Cargo.toml
 create mode 100644 zed-extension/extension.toml
 create mode 100644 zed-extension/src/lib.rs

diff --git a/flake.nix b/flake.nix
index 12cdf69..d1bb3c8 100644
--- a/flake.nix
+++ b/flake.nix
@@ -89,6 +89,38 @@
           }
         );
 
+      mkZedExtension =
+        system:
+        let
+          pkgs = mkPkgs system;
+          toolchain = pkgs.rust-bin.stable.latest.default.override {
+            targets = [ "wasm32-wasip1" ];
+          };
+          craneLib = (crane.mkLib pkgs).overrideToolchain toolchain;
+          extensionSrc = ./zed-extension;
+          vendoredDeps = craneLib.vendorCargoDeps { src = extensionSrc; };
+        in
+        pkgs.stdenv.mkDerivation {
+          pname = "streamd-zed-extension";
+          version = "0.0.1";
+          src = extensionSrc;
+
+          nativeBuildInputs = [ toolchain ];
+
+          buildPhase = ''
+            export HOME=$TMPDIR
+            mkdir -p .cargo
+            cp ${vendoredDeps}/config.toml .cargo/config.toml
+            cargo build --release --target wasm32-wasip1 --offline
+          '';
+
+          installPhase = ''
+            mkdir -p $out
+            cp extension.toml $out/
+            cp target/wasm32-wasip1/release/streamd_zed.wasm $out/extension.wasm
+          '';
+        };
+
       mkGitHooksCheck =
         system:
         let
@@ -214,9 +246,10 @@
           streamd-musl = mkStreamdMusl system;
           streamd-deb = mkStreamdDeb system;
           streamd-windows = mkStreamdWindows system;
+          zed-extension = mkZedExtension system;
         in
         {
-          inherit streamd streamd-musl streamd-deb streamd-windows;
+          inherit streamd streamd-musl streamd-deb streamd-windows zed-extension;
           default = streamd;
         }
       );
diff --git a/zed-extension/Cargo.lock b/zed-extension/Cargo.lock
new file mode 100644
index 0000000..620b156
--- /dev/null
+++ b/zed-extension/Cargo.lock
@@ -0,0 +1,341 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 4
+
+[[package]]
+name = "anyhow"
+version = "1.0.102"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7f202df86484c868dbad7eaa557ef785d5c66295e41b460ef922eca0723b842c"
+
+[[package]]
+name = "bitflags"
+version = "2.11.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c4512299f36f043ab09a583e57bceb5a5aab7a73db1805848e8fef3c9e8c78b3"
+
+[[package]]
+name = "equivalent"
+version = "1.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "877a4ace8713b0bcf2a4e7eec82529c029f1d0619886d18145fea96c3ffe5c0f"
+
+[[package]]
+name = "hashbrown"
+version = "0.17.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4f467dd6dccf739c208452f8014c75c18bb8301b050ad1cfb27153803edb0f51"
+
+[[package]]
+name = "heck"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "95505c38b4572b2d910cecb0281560f54b440a19336cbbcb27bf6ce6adc6f5a8"
+dependencies = [
+ "unicode-segmentation",
+]
+
+[[package]]
+name = "id-arena"
+version = "2.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3d3067d79b975e8844ca9eb072e16b31c3c1c36928edf9c6789548c524d0d954"
+
+[[package]]
+name = "indexmap"
+version = "2.14.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d466e9454f08e4a911e14806c24e16fba1b4c121d1ea474396f396069cf949d9"
+dependencies = [
+ "equivalent",
+ "hashbrown",
+ "serde",
+ "serde_core",
+]
+
+[[package]]
+name = "itoa"
+version = "1.0.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8f42a60cbdf9a97f5d2305f08a87dc4e09308d1276d28c869c684d7777685682"
+
+[[package]]
+name = "leb128"
+version = "0.2.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "884e2677b40cc8c339eaefcb701c32ef1fd2493d71118dc0ca4b6a736c93bd67"
+
+[[package]]
+name = "log"
+version = "0.4.29"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5e5032e24019045c762d3c0f28f5b6b8bbf38563a65908389bf7978758920897"
+
+[[package]]
+name = "memchr"
+version = "2.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f8ca58f447f06ed17d5fc4043ce1b10dd205e060fb3ce5b979b8ed8e59ff3f79"
+
+[[package]]
+name = "proc-macro2"
+version = "1.0.106"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8fd00f0bb2e90d81d1044c2b32617f68fcb9fa3bb7640c23e9c748e53fb30934"
+dependencies = [
+ "unicode-ident",
+]
+
+[[package]]
+name = "quote"
+version = "1.0.45"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "41f2619966050689382d2b44f664f4bc593e129785a36d6ee376ddf37259b924"
+dependencies = [
+ "proc-macro2",
+]
+
+[[package]]
+name = "semver"
+version = "1.0.28"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8a7852d02fc848982e0c167ef163aaff9cd91dc640ba85e263cb1ce46fae51cd"
+
+[[package]]
+name = "serde"
+version = "1.0.228"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9a8e94ea7f378bd32cbbd37198a4a91436180c5bb472411e48b5ec2e2124ae9e"
+dependencies = [
+ "serde_core",
+ "serde_derive",
+]
+
+[[package]]
+name = "serde_core"
+version = "1.0.228"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "41d385c7d4ca58e59fc732af25c3983b67ac852c1a25000afe1175de458b67ad"
+dependencies = [
+ "serde_derive",
+]
+
+[[package]]
+name = "serde_derive"
+version = "1.0.228"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d540f220d3187173da220f885ab66608367b6574e925011a9353e4badda91d79"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "serde_json"
+version = "1.0.149"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "83fc039473c5595ace860d8c4fafa220ff474b3fc6bfdb4293327f1a37e94d86"
+dependencies = [
+ "itoa",
+ "memchr",
+ "serde",
+ "serde_core",
+ "zmij",
+]
+
+[[package]]
+name = "smallvec"
+version = "1.15.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "67b1b7a3b5fe4f1376887184045fcf45c69e92af734b7aaddc05fb777b6fbd03"
+
+[[package]]
+name = "spdx"
+version = "0.10.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c3e17e880bafaeb362a7b751ec46bdc5b61445a188f80e0606e68167cd540fa3"
+dependencies = [
+ "smallvec",
+]
+
+[[package]]
+name = "streamd-zed"
+version = "0.0.1"
+dependencies = [
+ "zed_extension_api",
+]
+
+[[package]]
+name = "syn"
+version = "2.0.117"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e665b8803e7b1d2a727f4023456bbbbe74da67099c585258af0ad9c5013b9b99"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-ident",
+]
+
+[[package]]
+name = "unicode-ident"
+version = "1.0.24"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e6e4313cd5fcd3dad5cafa179702e2b244f760991f45397d14d4ebf38247da75"
+
+[[package]]
+name = "unicode-segmentation"
+version = "1.13.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9629274872b2bfaf8d66f5f15725007f635594914870f65218920345aa11aa8c"
+
+[[package]]
+name = "unicode-xid"
+version = "0.2.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ebc1c04c71510c7f702b52b7c350734c9ff1295c464a03335b00bb84fc54f853"
+
+[[package]]
+name = "wasm-encoder"
+version = "0.201.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b9c7d2731df60006819b013f64ccc2019691deccf6e11a1804bc850cd6748f1a"
+dependencies = [
+ "leb128",
+]
+
+[[package]]
+name = "wasm-metadata"
+version = "0.201.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0fd83062c17b9f4985d438603cde0a5e8c5c8198201a6937f778b607924c7da2"
+dependencies = [
+ "anyhow",
+ "indexmap",
+ "serde",
+ "serde_derive",
+ "serde_json",
+ "spdx",
+ "wasm-encoder",
+ "wasmparser",
+]
+
+[[package]]
+name = "wasmparser"
+version = "0.201.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "84e5df6dba6c0d7fafc63a450f1738451ed7a0b52295d83e868218fa286bf708"
+dependencies = [
+ "bitflags",
+ "indexmap",
+ "semver",
+]
+
+[[package]]
+name = "wit-bindgen"
+version = "0.22.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "288f992ea30e6b5c531b52cdd5f3be81c148554b09ea416f058d16556ba92c27"
+dependencies = [
+ "bitflags",
+ "wit-bindgen-rt",
+ "wit-bindgen-rust-macro",
+]
+
+[[package]]
+name = "wit-bindgen-core"
+version = "0.22.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e85e72719ffbccf279359ad071497e47eb0675fe22106dea4ed2d8a7fcb60ba4"
+dependencies = [
+ "anyhow",
+ "wit-parser",
+]
+
+[[package]]
+name = "wit-bindgen-rt"
+version = "0.22.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fcb8738270f32a2d6739973cbbb7c1b6dd8959ce515578a6e19165853272ee64"
+
+[[package]]
+name = "wit-bindgen-rust"
+version = "0.22.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d8a39a15d1ae2077688213611209849cad40e9e5cccf6e61951a425850677ff3"
+dependencies = [
+ "anyhow",
+ "heck",
+ "indexmap",
+ "wasm-metadata",
+ "wit-bindgen-core",
+ "wit-component",
+]
+
+[[package]]
+name = "wit-bindgen-rust-macro"
+version = "0.22.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d376d3ae5850526dfd00d937faea0d81a06fa18f7ac1e26f386d760f241a8f4b"
+dependencies = [
+ "anyhow",
+ "proc-macro2",
+ "quote",
+ "syn",
+ "wit-bindgen-core",
+ "wit-bindgen-rust",
+]
+
+[[package]]
+name = "wit-component"
+version = "0.201.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "421c0c848a0660a8c22e2fd217929a0191f14476b68962afd2af89fd22e39825"
+dependencies = [
+ "anyhow",
+ "bitflags",
+ "indexmap",
+ "log",
+ "serde",
+ "serde_derive",
+ "serde_json",
+ "wasm-encoder",
+ "wasm-metadata",
+ "wasmparser",
+ "wit-parser",
+]
+
+[[package]]
+name = "wit-parser"
+version = "0.201.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "196d3ecfc4b759a8573bf86a9b3f8996b304b3732e4c7de81655f875f6efdca6"
+dependencies = [
+ "anyhow",
+ "id-arena",
+ "indexmap",
+ "log",
+ "semver",
+ "serde",
+ "serde_derive",
+ "serde_json",
+ "unicode-xid",
+ "wasmparser",
+]
+
+[[package]]
+name = "zed_extension_api"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "594fd10dd0f2f853eb243e2425e7c95938cef49adb81d9602921d002c5e6d9d9"
+dependencies = [
+ "serde",
+ "serde_json",
+ "wit-bindgen",
+]
+
+[[package]]
+name = "zmij"
+version = "1.0.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b8848ee67ecc8aedbaf3e4122217aff892639231befc6a1b58d29fff4c2cabaa"
diff --git a/zed-extension/Cargo.toml b/zed-extension/Cargo.toml
new file mode 100644
index 0000000..8663778
--- /dev/null
+++ b/zed-extension/Cargo.toml
@@ -0,0 +1,10 @@
+[package]
+name = "streamd-zed"
+version = "0.0.1"
+edition = "2021"
+
+[lib]
+crate-type = ["cdylib"]
+
+[dependencies]
+zed_extension_api = "0.1"
diff --git a/zed-extension/extension.toml b/zed-extension/extension.toml
new file mode 100644
index 0000000..e2e91f5
--- /dev/null
+++ b/zed-extension/extension.toml
@@ -0,0 +1,11 @@
+id = "streamd"
+name = "Streamd"
+version = "0.0.1"
+schema_version = 1
+authors = ["Konstantin Fickel"]
+description = "Streamd LSP support for Zed editor"
+repository = "https://git.konstantinfickel.de/kfickel/streamd"
+
+[language_servers.streamd]
+name = "Streamd LSP"
+languages = ["Markdown"]
diff --git a/zed-extension/src/lib.rs b/zed-extension/src/lib.rs
new file mode 100644
index 0000000..04f1600
--- /dev/null
+++ b/zed-extension/src/lib.rs
@@ -0,0 +1,23 @@
+use zed_extension_api::{self as zed, Command, LanguageServerId, Result, Worktree};
+
+struct StreamdExtension;
+
+impl zed::Extension for StreamdExtension {
+    fn new() -> Self {
+        StreamdExtension
+    }
+
+    fn language_server_command(
+        &mut self,
+        _language_server_id: &LanguageServerId,
+        _worktree: &Worktree,
+    ) -> Result<Command> {
+        Ok(Command {
+            command: "streamd".into(),
+            args: vec!["lsp".into()],
+            env: vec![],
+        })
+    }
+}
+
+zed::register_extension!(StreamdExtension);