core: migrate to zig 0.16

.github/workflows/bench-native-smoke.yml

@@ -14,7 +14,7 @@ concurrency:
 env:
   FORCE_JAVASCRIPT_ACTIONS_TO_NODE24: true
   BUN_VERSION: 1.3.14
-  ZIG_VERSION: 0.15.2
+  ZIG_VERSION: 0.16.0
 
 jobs:
   bench-native-smoke:

.github/workflows/build-core.yml

@@ -16,7 +16,7 @@ concurrency:
 env:
   FORCE_JAVASCRIPT_ACTIONS_TO_NODE24: true
   NODE_VERSION: 26.4.0
-  ZIG_VERSION: 0.15.2
+  ZIG_VERSION: 0.16.0
 
 jobs:
   build:

.github/workflows/build-keymap.yml

@@ -39,16 +39,16 @@ jobs:
       - name: Setup Zig
         uses: mlugg/setup-zig@v2
         with:
-          version: 0.15.2
+          version: 0.16.0
           use-cache: false
 
       - name: Restore Zig cache
         if: runner.os != 'Windows'
         uses: actions/cache@v5
         with:
           path: .zig-cache
-          key: zig-v1-${{ runner.os }}-0.15.2-${{ github.run_id }}-${{ github.job }}
-          restore-keys: zig-v1-${{ runner.os }}-0.15.2-
+          key: zig-v1-${{ runner.os }}-0.16.0-${{ github.run_id }}-${{ github.job }}
+          restore-keys: zig-v1-${{ runner.os }}-0.16.0-
 
       - name: Install dependencies
         run: bun install
@@ -91,15 +91,15 @@ jobs:
       - name: Setup Zig
         uses: mlugg/setup-zig@v2
         with:
-          version: 0.15.2
+          version: 0.16.0
           use-cache: false
 
       - name: Restore Zig cache
         uses: actions/cache@v5
         with:
           path: .zig-cache
-          key: zig-v1-${{ runner.os }}-0.15.2-${{ github.run_id }}-${{ github.job }}
-          restore-keys: zig-v1-${{ runner.os }}-0.15.2-
+          key: zig-v1-${{ runner.os }}-0.16.0-${{ github.run_id }}-${{ github.job }}
+          restore-keys: zig-v1-${{ runner.os }}-0.16.0-
 
       - name: Install dependencies
         run: bun install

.github/workflows/build-native.yml

@@ -13,7 +13,7 @@ permissions:
 
 env:
   FORCE_JAVASCRIPT_ACTIONS_TO_NODE24: true
-  ZIG_VERSION: 0.15.2
+  ZIG_VERSION: 0.16.0
 
 jobs:
   build-native:

.github/workflows/build-qrcode.yml

@@ -15,9 +15,6 @@ concurrency:
 
 env:
   FORCE_JAVASCRIPT_ACTIONS_TO_NODE24: true
-  # Workaround for bug in Zig 0.15.2 (fixed in next version)
-  # https://github.com/ziglang/zig/issues/25805
-  ZIG_GLOBAL_CACHE_DIR: ${{ github.workspace }}/.zig-global-cache
 
 jobs:
   test:
@@ -41,16 +38,15 @@ jobs:
       - name: Setup Zig
         uses: mlugg/setup-zig@v2
         with:
-          version: 0.15.2
-          use-cache: false
+          version: 0.16.0
 
       - name: Restore Zig cache
         if: runner.os != 'Windows'
         uses: actions/cache@v5
         with:
           path: .zig-cache
-          key: zig-v1-${{ runner.os }}-0.15.2-${{ github.run_id }}-${{ github.job }}
-          restore-keys: zig-v1-${{ runner.os }}-0.15.2-
+          key: zig-v1-${{ runner.os }}-0.16.0-${{ github.run_id }}-${{ github.job }}
+          restore-keys: zig-v1-${{ runner.os }}-0.16.0-
 
       - name: Install dependencies
         run: bun install

.github/workflows/build-react.yml

@@ -38,16 +38,16 @@ jobs:
       - name: Setup Zig
         uses: mlugg/setup-zig@v2
         with:
-          version: 0.15.2
+          version: 0.16.0
           use-cache: false
 
       - name: Restore Zig cache
         if: runner.os != 'Windows'
         uses: actions/cache@v5
         with:
           path: .zig-cache
-          key: zig-v1-${{ runner.os }}-0.15.2-${{ github.run_id }}-${{ github.job }}
-          restore-keys: zig-v1-${{ runner.os }}-0.15.2-
+          key: zig-v1-${{ runner.os }}-0.16.0-${{ github.run_id }}-${{ github.job }}
+          restore-keys: zig-v1-${{ runner.os }}-0.16.0-
 
       - name: Install dependencies
         run: bun install

.github/workflows/build-solid.yml

@@ -39,16 +39,16 @@ jobs:
       - name: Setup Zig
         uses: mlugg/setup-zig@v2
         with:
-          version: 0.15.2
+          version: 0.16.0
           use-cache: false
 
       - name: Restore Zig cache
         if: runner.os != 'Windows'
         uses: actions/cache@v5
         with:
           path: .zig-cache
-          key: zig-v1-${{ runner.os }}-0.15.2-${{ github.run_id }}-${{ github.job }}
-          restore-keys: zig-v1-${{ runner.os }}-0.15.2-
+          key: zig-v1-${{ runner.os }}-0.16.0-${{ github.run_id }}-${{ github.job }}
+          restore-keys: zig-v1-${{ runner.os }}-0.16.0-
 
       - name: Install dependencies
         run: bun install
@@ -88,15 +88,15 @@ jobs:
       - name: Setup Zig
         uses: mlugg/setup-zig@v2
         with:
-          version: 0.15.2
+          version: 0.16.0
           use-cache: false
 
       - name: Restore Zig cache
         uses: actions/cache@v5
         with:
           path: .zig-cache
-          key: zig-v1-${{ runner.os }}-0.15.2-${{ github.run_id }}-${{ github.job }}
-          restore-keys: zig-v1-${{ runner.os }}-0.15.2-
+          key: zig-v1-${{ runner.os }}-0.16.0-${{ github.run_id }}-${{ github.job }}
+          restore-keys: zig-v1-${{ runner.os }}-0.16.0-
 
       - name: Install dependencies
         run: bun install
@@ -136,15 +136,15 @@ jobs:
       - name: Setup Zig
         uses: mlugg/setup-zig@v2
         with:
-          version: 0.15.2
+          version: 0.16.0
           use-cache: false
 
       - name: Restore Zig cache
         uses: actions/cache@v5
         with:
           path: .zig-cache
-          key: zig-v1-${{ runner.os }}-0.15.2-${{ github.run_id }}-${{ github.job }}
-          restore-keys: zig-v1-${{ runner.os }}-0.15.2-
+          key: zig-v1-${{ runner.os }}-0.16.0-${{ github.run_id }}-${{ github.job }}
+          restore-keys: zig-v1-${{ runner.os }}-0.16.0-
 
       - name: Install dependencies
         run: bun install

.github/workflows/build-ssh.yml

@@ -39,9 +39,9 @@ jobs:
       - name: Setup Zig
         uses: mlugg/setup-zig@v2
         with:
-          version: 0.15.2
+          version: 0.16.0
           # Keep Zig's cache path on the workspace drive, but do not restore/save
-          # stale .zig-cache archives on Windows; Zig 0.15.2 can fail with missing cache files.
+          # stale .zig-cache archives on Windows can contain missing cache files.
           use-cache: ${{ runner.os != 'Windows' }}
           cache-key: build-ssh
 
@@ -98,7 +98,7 @@ jobs:
       - name: Setup Zig
         uses: mlugg/setup-zig@v2
         with:
-          version: 0.15.2
+          version: 0.16.0
           cache-key: build-ssh-packed
 
       - name: Install dependencies

.github/workflows/npm-release.yml

@@ -32,15 +32,15 @@ jobs:
       - name: Setup Zig
         uses: mlugg/setup-zig@v2
         with:
-          version: 0.15.2
+          version: 0.16.0
           use-cache: false
 
       - name: Restore Zig cache
         uses: actions/cache@v5
         with:
           path: .zig-cache
-          key: zig-v1-${{ runner.os }}-0.15.2-${{ github.run_id }}-${{ github.job }}
-          restore-keys: zig-v1-${{ runner.os }}-0.15.2-
+          key: zig-v1-${{ runner.os }}-0.16.0-${{ github.run_id }}-${{ github.job }}
+          restore-keys: zig-v1-${{ runner.os }}-0.16.0-
 
       - name: Generate snapshot version
         id: version_scheme

.github/workflows/pkg-pr-new.yml

@@ -33,15 +33,15 @@ jobs:
       - name: Setup Zig
         uses: mlugg/setup-zig@v2
         with:
-          version: 0.15.2
+          version: 0.16.0
           use-cache: false
 
       - name: Restore Zig cache
         uses: actions/cache@v5
         with:
           path: .zig-cache
-          key: zig-v1-${{ runner.os }}-0.15.2-${{ github.run_id }}-${{ github.job }}
-          restore-keys: zig-v1-${{ runner.os }}-0.15.2-
+          key: zig-v1-${{ runner.os }}-0.16.0-${{ github.run_id }}-${{ github.job }}
+          restore-keys: zig-v1-${{ runner.os }}-0.16.0-
 
       - name: Install dependencies
         run: bun install

.zig-version

@@ -1 +1 @@
-0.15.2
+0.16.0

packages/core/package.json

@@ -45,7 +45,7 @@
     "publish": "bun scripts/publish.ts",
     "test:dist": "bun scripts/dist-test.ts",
     "test:standalone": "bun scripts/standalone-test.ts",
-    "test:js": "bun test",
+    "test:js": "bun test --path-ignore-patterns='src/zig/zig-pkg/**'",
     "test:js:node": "bun scripts/test-node.ts",
     "test": "bun run test:native && bun run test:js"
   },

packages/core/src/renderer.ts

@@ -527,6 +527,10 @@ class ScrollbackSnapshotRenderContext extends EventEmitter implements RenderCont
 }
 
 const DEFAULT_FORWARDED_ENV_KEYS = [
+  "SSH_CONNECTION",
+  "SSH_CLIENT",
+  "SSH_TTY",
+  "MOSH_CONNECTION",
   "TMUX",
   "ZELLIJ",
   "ZELLIJ_SESSION_NAME",
@@ -1138,7 +1142,7 @@ export class CliRenderer extends EventEmitter implements RenderContext {
     this.clearOnShutdown = config.clearOnShutdown ?? true
     this.lib.setClearOnShutdown(this.rendererPtr, this.clearOnShutdown)
 
-    const forwardEnvKeys = config.forwardEnvKeys ?? (config.remote === false ? [...DEFAULT_FORWARDED_ENV_KEYS] : [])
+    const forwardEnvKeys = config.forwardEnvKeys ?? (remoteMode === true ? [] : [...DEFAULT_FORWARDED_ENV_KEYS])
     for (const key of forwardEnvKeys) {
       const value = process.env[key]
       if (value === undefined) continue

packages/core/src/tests/renderer.remote.test.ts

@@ -3,7 +3,7 @@ import { describe, expect, test } from "bun:test"
 type RendererFactory = "test" | "direct-process-memory" | "cli-custom-memory" | "cli-custom-feed"
 
 async function getCapabilitiesFromChild(
-  options: { remote?: boolean },
+  options: { remote?: boolean; forwardEnvKeys?: string[] },
   env: Record<string, string>,
   factory: RendererFactory = "test",
 ): Promise<any> {
@@ -160,6 +160,23 @@ describe("remote detection", () => {
     expect(caps.terminal.name).toBe("")
   })
 
+  test("explicit remote mode applies explicitly forwarded terminal overrides", async () => {
+    const caps = await getCapabilitiesFromChild(
+      { remote: true, forwardEnvKeys: ["TERM", "OPENTUI_FORCE_WCWIDTH"] },
+      {
+        PATH: process.env.PATH ?? "",
+        HOME: process.env.HOME ?? "",
+        TMPDIR: process.env.TMPDIR ?? "/tmp",
+        TERM: "xterm-256color",
+        OPENTUI_FORCE_WCWIDTH: "1",
+      },
+    )
+
+    expect(caps.remote).toBe(true)
+    expect(caps.ansi256).toBe(true)
+    expect(caps.unicode).toBe("wcwidth")
+  })
+
   test("process stdout with memory output preserves auto remote detection", async () => {
     const caps = await getCapabilitiesFromChild(
       {},