diff --git a/docs/user/manual.adoc b/docs/user/manual.adoc
index 2cf985adab..5dafd1a4c8 100644
--- a/docs/user/manual.adoc
+++ b/docs/user/manual.adoc
@@ -949,6 +949,29 @@ Or it is possible to specify vars more granularly:
 You can use any valid regular expression as a mask.
 Also note that a full runnable name is something like *run bin_or_example_name*, *test some::mod::test_name* or *test-mod some::mod*, so it is possible to distinguish binaries, single tests, and test modules with this masks: `"^run"`, `"^test "` (the trailing space matters!), and `"^test-mod"` respectively.
 
+If needed, you can set different values for different platforms:
+```jsonc
+"rust-analyzer.runnables.extraEnv": [
+    {
+        "platform": "win32", // windows only
+        env: {
+             "APP_DATA": "windows specific data"
+        }
+    },
+    {
+        "platform": ["linux"],
+        "env": {
+             "APP_DATA": "linux data",
+        }
+    },
+    { // for all platforms
+        "env": {
+             "APP_COMMON_DATA": "xxx",
+        }
+    }
+]
+```
+
 ==== Compiler feedback from external commands
 
 Instead of relying on the built-in `cargo check`, you can configure Code to run a command in the background and use the `$rustc-watch` problem matcher to generate inline error markers from its output.
diff --git a/editors/code/package.json b/editors/code/package.json
index 8b20011ba5..76d7e91f38 100644
--- a/editors/code/package.json
+++ b/editors/code/package.json
@@ -328,6 +328,15 @@
                             "items": {
                                 "type": "object",
                                 "properties": {
+                                    "platform": {
+                                        "type": [
+                                            "null",
+                                            "string",
+                                            "array"
+                                        ],
+                                        "default": null,
+                                        "markdownDescription": "Platform(s) filter like \"win32\" or [\"linux\", \"win32\"]. See [process.platform](https://nodejs.org/api/process.html#processplatform) values."
+                                    },
                                     "mask": {
                                         "type": "string",
                                         "description": "Runnable name mask"
diff --git a/editors/code/src/config.ts b/editors/code/src/config.ts
index a047f9659a..0e64054c11 100644
--- a/editors/code/src/config.ts
+++ b/editors/code/src/config.ts
@@ -6,10 +6,12 @@ import type { Env } from "./client";
 import { log } from "./util";
 import { expectNotUndefined, unwrapUndefinable } from "./undefinable";
 
-export type RunnableEnvCfg =
-    | undefined
-    | Record<string, string>
-    | { mask?: string; env: Record<string, string> }[];
+export type RunnableEnvCfgItem = {
+    mask?: string;
+    env: Record<string, string>;
+    platform?: string | string[];
+};
+export type RunnableEnvCfg = undefined | Record<string, string> | RunnableEnvCfgItem[];
 
 export class Config {
     readonly extensionId = "rust-lang.rust-analyzer";
diff --git a/editors/code/src/run.ts b/editors/code/src/run.ts
index c893d39055..57881803a6 100644
--- a/editors/code/src/run.ts
+++ b/editors/code/src/run.ts
@@ -5,7 +5,7 @@ import * as tasks from "./tasks";
 
 import type { CtxInit } from "./ctx";
 import { makeDebugConfig } from "./debug";
-import type { Config, RunnableEnvCfg } from "./config";
+import type { Config, RunnableEnvCfg, RunnableEnvCfgItem } from "./config";
 import { unwrapUndefinable } from "./undefinable";
 
 const quickPickButtons = [
@@ -112,11 +112,21 @@ export function prepareEnv(
     }
 
     Object.assign(env, process.env as { [key: string]: string });
+    const platform = process.platform;
+
+    const checkPlatform = (it: RunnableEnvCfgItem) => {
+        if (it.platform) {
+            const platforms = Array.isArray(it.platform) ? it.platform : [it.platform];
+            return platforms.indexOf(platform) >= 0;
+        }
+        return true;
+    };
 
     if (runnableEnvCfg) {
         if (Array.isArray(runnableEnvCfg)) {
             for (const it of runnableEnvCfg) {
-                if (!it.mask || new RegExp(it.mask).test(runnable.label)) {
+                const masked = !it.mask || new RegExp(it.mask).test(runnable.label);
+                if (masked && checkPlatform(it)) {
                     Object.assign(env, it.env);
                 }
             }