dsh web fails on Linux: node-pty native module pty.node missing (no linux-x64 prebuild, no build fallback)

[Ernest-su]

"## Summary\n\nnpx @deepseek-ai/dsh web fails to start on Linux x64: the bundled node-pty native module pty.node is missing, so the subprocess plugin (@deepseek-ai/dsh-subprocess-local) fails to load and the whole plugin tree fails to boot.\n\n## Environment\n\n- OS: Arch Linux x86_64 (kernel 7.1.7-arch1-1)\n- Node: v26.7.0\n- npm: 12.0.2\n- Package: @deepseek-ai/dsh (latest, via npx) \u2192 node-pty@1.1.0\n- npx cache: ~/.npm/_npx/1e7f6d9597241db0/\n\n## Error\n\n\nError: dsh: plugin tree failed to load: failed to apply loader entry include (cordis:include):\nfailed to import loader entry subprocess (@deepseek-ai/dsh-subprocess-local):\nFailed to load native module: pty.node, checked: build/Release, build/Debug,\nprebuilds/linux-x64: Error: Cannot find module './prebuilds/linux-x64//pty.node'\n\n\n## Root cause\n\nThe node-pty@1.1.0 npm package installed into the npx cache contains no Linux prebuilt binary \u2014 its prebuilds/ directory only ships:\n\n\ndarwin-arm64/\ndarwin-x64/\nwin32-arm64/\nwin32-x64/\n\n\nThere is no prebuilds/linux-x64/ and no build/ directory (nothing was compiled from source either).\n\nnode-pty's install script is node scripts/prebuild.js || node-gyp rebuild; prebuild.js only checks for the existence of the platform prebuild dir and exits 1 when it is missing, which should trigger the node-gyp rebuild fallback. In the npx install context that fallback did not produce a binary (no build/Release/pty.node), so at runtime the module loader fails.\n\n## Workaround\n\nRebuild manually inside the npx cache:\n\n\ncd ~/.npm/_npx/<hash>/node_modules/node-pty\nnode-gyp rebuild\n\n\nAfter that, npx @deepseek-ai/dsh web starts and serves http://127.0.0.1:3080 correctly.\n\n## Suggested fix\n\n- Ship linux-x64 (and ideally linux-arm64) prebuilds in the node-pty npm tarball used by dsh, or\n- Make the build-from-source fallback reliable during install (e.g. fail the install loudly when neither a prebuild nor a successful compile is available), or\n- Ensure node-gyp prerequisites are enforced/checked with a clear error message instead of silently proceeding with a missing native module.\n"

[franztao]

pnpm install
native/landlock-run/packages/linux-arm64 | [WARN] Unsupported platform: wanted: {"cpu":["arm64"],"os":["linux"],"libc":["any"]} (current: {"os":"linux","cpu":"x64","libc":"glibc"})
Scope: all 238 workspace projects
[WARN] There are cyclic workspace dependencies: /home/hengtao/code/deepseek-harness/packages/api/gateway, /home/hengtao/code/deepseek-harness/packages/client/connection, /home/hengtao/code/deepseek-harness/packages/host/apiproxy, /home/hengtao/code/deepseek-harness/packages/api/remotes; /home/hengtao/code/deepseek-harness/packages/sandbox/sandbox-local, /home/hengtao/code/deepseek-harness/packages/sandbox/sandbox-windows-acl; /home/hengtao/code/deepseek-harness/packages/subagent/subagent-spawn-in-process, /home/hengtao/code/deepseek-harness/packages/subagent/tool-subagent; /home/hengtao/code/deepseek-harness/vendor/cordis, /home/hengtao/code/deepseek-harness/vendor/include
✓ Lockfile passes supply-chain policies (verified 12m ago)
Lockfile is up to date, resolution step is skipped
Packages: +923
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Progress: resolved 923, reused 917, downloaded 0, added 923, done
node_modules/.pnpm/node-pty@1.1.0_patch_hash=7a0c04f1f49d798a9ffe2f7f414c01064a44ca2489772d0c3e1235ab336755e6/node_modules/node-pty: Running install script, failed in 682ms
.../node_modules/node-pty install$ node scripts/prebuild.js || node-gyp rebuild
│ > Checking prebuilds...
│ > Rebuilding because directory /home/hengtao/code/deepseek-harness/node_modules/.pnpm/node-pty@1.1.0_patch_hash=7a0c04f1f49d798a9ffe2f7f414c01064a44ca2489772d0c3e1235ab336755e6/node_modules/node-pty/prebuilds/linux-x64 does not exist
│ gyp info it worked if it ends with ok
│ gyp info using node-gyp@12.4.0
│ gyp info using node@24.18.1 | linux | x64
│ gyp info find Python using Python version 3.12.4 found at "/home/hengtao/miniconda3/bin/python3"
│ gyp http GET https://nodejs.org/download/release/v24.18.1/node-v24.18.1-headers.tar.gz
│ (node:3121589) [UNDICI-EHPA] Warning: EnvHttpProxyAgent is experimental, expect them to change at any time.
│ (Use node --trace-warnings ... to show where the warning was created)
│ gyp WARN install got an error, rolling back install
│ gyp ERR! configure error
│ gyp ERR! stack Error: Request was cancelled.
│ gyp ERR! stack at new DOMException (node:internal/per_context/domexception:76:18)
│ gyp ERR! stack at makeAppropriateNetworkError (/home/hengtao/.local/share/pnpm/store/v11/links/@/pnpm/11.7.0/2925d75aab9810c8ee347d5663a06da09a1ab27a244811424e7c3a56423481f0/node_modules/pnpm/dist/node_modules/undici/lib/web/fetch/response.js:450:38)
│ gyp ERR! stack at httpNetworkFetch (/home/hengtao/.local/share/pnpm/store/v11/links/@/pnpm/11.7.0/2925d75aab9810c8ee347d5663a06da09a1ab27a244811424e7c3a56423481f0/node_modules/pnpm/dist/node_modules/undici/lib/web/fetch/index.js:1883:14)
│ gyp ERR! stack at process.processTicksAndRejections (node:internal/process/task_queues:104:5)
│ gyp ERR! stack at async httpNetworkOrCacheFetch (/home/hengtao/.local/share/pnpm/store/v11/links/@/pnpm/11.7.0/2925d75aab9810c8ee347d5663a06da09a1ab27a244811424e7c3a56423481f0/node_modules/pnpm/dist/node_modules/undici/lib/web/fetch/index.js:1568:29)
│ gyp ERR! stack at async httpFetch (/home/hengtao/.local/share/pnpm/store/v11/links/@/pnpm/11.7.0/2925d75aab9810c8ee347d5663a06da09a1ab27a244811424e7c3a56423481f0/node_modules/pnpm/dist/node_modules/undici/lib/web/fetch/index.js:1139:33)
│ gyp ERR! stack at async /home/hengtao/.local/share/pnpm/store/v11/links/@/pnpm/11.7.0/2925d75aab9810c8ee347d5663a06da09a1ab27a244811424e7c3a56423481f0/node_modules/pnpm/dist/node_modules/undici/lib/web/fetch/index.js:591:16
│ gyp ERR! stack at async mainFetch (/home/hengtao/.local/share/pnpm/store/v11/links/@/pnpm/11.7.0/2925d75aab9810c8ee347d5663a06da09a1ab27a244811424e7c3a56423481f0/node_modules/pnpm/dist/node_modules/undici/lib/web/fetch/index.js:575:16)
│ gyp ERR! System Linux 5.15.0-58-generic
│ gyp ERR! command "/usr/bin/node" "/home/hengtao/.local/share/pnpm/store/v11/links/@/pnpm/11.7.0/2925d75aab9810c8ee347d5663a06da09a1ab27a244811424e7c3a56423481f0/node_modules/pnpm/dist/node_modules/node-gyp/bin/node-gyp.js" "rebuild"
│ gyp ERR! cwd /home/hengtao/code/deepseek-harness/node_modules/.pnpm/node-pty@1.1.0_patch_hash=7a0c04f1f49d798a9ffe2f7f414c01064a44ca2489772d0c3e1235ab336755e6/node_modules/node-pty
│ gyp ERR! node -v v24.18.1
│ gyp ERR! node-gyp -v v12.4.0
│ gyp ERR! $npm_package_name node-pty
│ gyp ERR! $npm_package_version 1.1.0
│ gyp ERR! not ok
└─ Failed in 682ms at /home/hengtao/code/deepseek-harness/node_modules/.pnpm/node-pty@1.1.0_patch_hash=7a0c04f1f49d798a9ffe2f7f414c01064a44ca2489772d0c3e1235ab336755e6/node_modules/node-pty
[ELIFECYCLE] Command failed with exit code 1.