The remote server read the login shell's PATH once and cached it, had no project-level environment, and changed environment variables only took effect after reinstalling or a manual restart.
- Every openidea-server start re-reads the remote login shell's full environment (`$SHELL -ilc env -0`), with the cached PATH only as a fallback when the shell doesn't answer.
- A project's `.devcontainer/devcontainer.json` (or `.devcontainer.json`) applies on remote hosts: `remoteEnv` (with `${localEnv|containerEnv|env:X[:default]}`, workspace variables and `null` to unset) reaches every child process through one environment overlay (terminals, run configurations, language servers, debuggers, build tools, git), and `postStartCommand` (string, array or parallel object) runs once per server start in the project root as a cancellable background task; a failure raises a notification with the exit code and the last output lines without blocking the project.
- Reload Environment (`remote.reloadEnvironment`, File menu and Find Action) re-resolves the login shell and `remoteEnv` without restarting the server, starting from the process's original environment so prepended PATH entries don't pile up; it lists the changed variables, notes that running processes keep their environment, and offers to restart language servers.
- The JSONC reader moves to `ide_core::jsonc` and is shared with ide-run.
Claude-Session: https://claude.ai/code/session_01Dq6jQQn8ZhRfkkyj3PRutA
The IDE you know, rebuilt in Rust.
https://github.com/user-attachments/assets/234dd54c-1255-4b3a-b35c-533d78d737c0
OpenIDEA brings the IntelliJ IDEA way of working — its keymap, its tool windows, its search-everything habits — to a native app with a Rust core.
Editor, code insight, debugger, Git, terminal, database and HTTP clients, for 60+ languages. Builds for macOS, Windows and Linux.
Benchmark
Opening freqtrade (Python, ~770 files) with warm caches, median of 5 runs:
| OpenIDEA | IntelliJ IDEA 2026.2.3 | |
|---|---|---|
| Window with the project | 0.9 s | 3.1 s |
| Ready (CPU settled) | 1.1 s | 13.2 s |
| Memory (USS, all processes) | 169 MB | 2011 MB |
| CPU time until ready | 2.4 s | 47.9 s |
| Idle CPU | 4 % of a core | 7 % of a core |
| Quit | 0.3 s | 5.9 s |
A release build of OpenIDEA from main and IDEA with default settings and plugins, on
Windows 11, 32-core AMD, 62 GB RAM.
IDEA analyses Python more deeply, so "ready" doesn't mean the same work on
both sides. Both are measured from the outside, the same way: see
perf/compare to run it on your machine and projects.
Build
pnpm install
pnpm tauri dev
Rust 1.96, Node 22, pnpm and the Tauri prerequisites.
License
Apache 2.0. Bundled third-party assets are listed in THIRD_PARTY_LICENSES.md.
Not affiliated with JetBrains. IntelliJ IDEA is a trademark of JetBrains s.r.o.