l0ng-ai
bbc6a2bc4c
The run list applies Languages & Frameworks to every configuration it returns (interpreter or toolchain command, PATH, VIRTUAL_ENV, JAVA_HOME, GOROOT, GOPATH, Go module variables, RUSTUP_TOOLCHAIN), and every save sends the user configurations back from that list, so the derived values were written to run.toml: reopening a configuration showed the IDE's whole PATH in its environment, and since applied values never replace existing ones, a saved configuration kept the old toolchain after the interpreter or SDK changed. Saving now drops what settings derive: an environment entry or an absolute command counts as derived when applying settings to the configuration without it produces it again. The user's own values, including ones for the same variables, are kept. Covers python, pytest, django-test, npm, cargo, go, maven, tomcat, ruby, rake, rspec and godot; Gradle stays as saved, as the run list already leaves it unapplied.
The IDE you know, rebuilt in Rust.
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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.
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.