diff --git a/packages/app/src/docker-git/cli/parser.ts b/packages/app/src/docker-git/cli/parser.ts
index 7892f660..ade0d3ce 100644
--- a/packages/app/src/docker-git/cli/parser.ts
+++ b/packages/app/src/docker-git/cli/parser.ts
@@ -22,6 +22,7 @@ const helpCommand: Command = { _tag: "Help", message: usageText }
 const menuCommand: Command = { _tag: "Menu" }
 const statusCommand: Command = { _tag: "Status" }
 const downAllCommand: Command = { _tag: "DownAll" }
+const applyAllCommand: Command = { _tag: "ApplyAll" }
 
 const parseCreate = (args: ReadonlyArray<string>): Either.Either<Command, ParseError> =>
   Either.flatMap(parseRawOptions(args), (raw) => buildCreateCommand(raw))
@@ -75,6 +76,8 @@ export const parseArgs = (args: ReadonlyArray<string>): Either.Either<Command, P
       Match.when("ui", () => Either.right(menuCommand))
     )
     .pipe(
+      Match.when("apply-all", () => Either.right(applyAllCommand)),
+      Match.when("update-all", () => Either.right(applyAllCommand)),
       Match.when("auth", () => parseAuth(rest)),
       Match.when("open", () => parseAttach(rest)),
       Match.when("apply", () => parseApply(rest)),
diff --git a/packages/app/src/docker-git/cli/usage.ts b/packages/app/src/docker-git/cli/usage.ts
index db3c53fb..8debd26e 100644
--- a/packages/app/src/docker-git/cli/usage.ts
+++ b/packages/app/src/docker-git/cli/usage.ts
@@ -19,6 +19,7 @@ docker-git session-gists backup [<url>] [options]
 docker-git session-gists view <snapshot-ref>
 docker-git session-gists download <snapshot-ref> [options]
 docker-git ps
+docker-git apply-all
 docker-git down-all
 docker-git auth <provider> <action> [options]
 docker-git state <action> [options]
@@ -36,6 +37,7 @@ Commands:
   sessions            List/kill/log container terminal processes
   session-gists       Manage AI session backups via a private session repository (backup/list/view/download)
   ps, status          Show docker compose status for all docker-git projects
+  apply-all           Apply docker-git config and refresh all containers (docker compose up)
   down-all            Stop all docker-git containers (docker compose down)
   auth                Manage GitHub/Codex/Claude Code auth for docker-git
   state               Manage docker-git state directory via git (sync across machines)
diff --git a/packages/app/src/docker-git/program.ts b/packages/app/src/docker-git/program.ts
index 67f5a6ad..4369ed19 100644
--- a/packages/app/src/docker-git/program.ts
+++ b/packages/app/src/docker-git/program.ts
@@ -19,7 +19,7 @@ import {
 import type { AppError } from "@effect-template/lib/usecases/errors"
 import { renderError } from "@effect-template/lib/usecases/errors"
 import { mcpPlaywrightUp } from "@effect-template/lib/usecases/mcp-playwright"
-import { downAllDockerGitProjects, listProjectStatus } from "@effect-template/lib/usecases/projects"
+import { applyAllDockerGitProjects, downAllDockerGitProjects, listProjectStatus } from "@effect-template/lib/usecases/projects"
 import { exportScrap, importScrap } from "@effect-template/lib/usecases/scrap"
 import {
   sessionGistBackup,
@@ -80,6 +80,7 @@ type NonBaseCommand = Exclude<
   | { readonly _tag: "Create" }
   | { readonly _tag: "Status" }
   | { readonly _tag: "DownAll" }
+  | { readonly _tag: "ApplyAll" }
   | { readonly _tag: "Menu" }
 >
 
@@ -141,6 +142,7 @@ export const program = pipe(
       Match.when({ _tag: "Create" }, (create) => createProject(create)),
       Match.when({ _tag: "Status" }, () => listProjectStatus),
       Match.when({ _tag: "DownAll" }, () => downAllDockerGitProjects),
+      Match.when({ _tag: "ApplyAll" }, () => applyAllDockerGitProjects),
       Match.when({ _tag: "Menu" }, () => runMenu),
       Match.orElse((cmd) => handleNonBaseCommand(cmd))
     )
diff --git a/packages/app/tests/docker-git/parser.test.ts b/packages/app/tests/docker-git/parser.test.ts
index 47d807b9..419855c4 100644
--- a/packages/app/tests/docker-git/parser.test.ts
+++ b/packages/app/tests/docker-git/parser.test.ts
@@ -265,6 +265,12 @@ describe("parseArgs", () => {
       expect(command.enableMcpPlaywright).toBe(true)
     }))
 
+  it.effect("parses apply-all and update-all commands", () =>
+    Effect.sync(() => {
+      expect(parseOrThrow(["apply-all"])._tag).toBe("ApplyAll")
+      expect(parseOrThrow(["update-all"])._tag).toBe("ApplyAll")
+    }))
+
   it.effect("parses down-all command", () =>
     Effect.sync(() => {
       const command = parseOrThrow(["down-all"])
diff --git a/packages/lib/src/core/domain.ts b/packages/lib/src/core/domain.ts
index 0c9f9083..07677351 100644
--- a/packages/lib/src/core/domain.ts
+++ b/packages/lib/src/core/domain.ts
@@ -144,6 +144,18 @@ export interface ApplyCommand {
   readonly enableMcpPlaywright?: boolean | undefined
 }
 
+// CHANGE: add apply-all command to apply docker-git config to every known project
+// WHY: allow bulk-updating all containers in one command instead of running apply for each project manually
+// QUOTE(ТЗ): "Сделать команду которая сама на все контейнеры применит новые настройки"
+// REF: issue-164
+// PURITY: CORE
+// EFFECT: n/a
+// INVARIANT: applies to all discovered projects; individual failures do not abort the batch
+// COMPLEXITY: O(1)
+export interface ApplyAllCommand {
+  readonly _tag: "ApplyAll"
+}
+
 export interface HelpCommand {
   readonly _tag: "Help"
   readonly message: string
@@ -322,6 +334,7 @@ export type Command =
   | ScrapCommand
   | McpPlaywrightUpCommand
   | ApplyCommand
+  | ApplyAllCommand
   | HelpCommand
   | StatusCommand
   | DownAllCommand
diff --git a/packages/lib/src/usecases/projects-apply-all.ts b/packages/lib/src/usecases/projects-apply-all.ts
new file mode 100644
index 00000000..ed4628cd
--- /dev/null
+++ b/packages/lib/src/usecases/projects-apply-all.ts
@@ -0,0 +1,64 @@
+import type { CommandExecutor } from "@effect/platform/CommandExecutor"
+import type { PlatformError } from "@effect/platform/Error"
+import type { FileSystem } from "@effect/platform/FileSystem"
+import type { Path } from "@effect/platform/Path"
+import { Effect, pipe } from "effect"
+
+import { ensureDockerDaemonAccess } from "../shell/docker.js"
+import type { DockerAccessError, DockerCommandError } from "../shell/errors.js"
+import { renderError } from "./errors.js"
+import { forEachProjectStatus, loadProjectIndex, renderProjectStatusHeader } from "./projects-core.js"
+import { runDockerComposeUpWithPortCheck } from "./projects-up.js"
+
+// CHANGE: provide an "apply all" helper for docker-git managed projects
+// WHY: allow applying updated docker-git config to every known project in one command
+// QUOTE(ТЗ): "Сделать команду которая сама на все контейнеры применит новые настройки"
+// REF: issue-164
+// SOURCE: n/a
+// FORMAT THEOREM: ∀p ∈ Projects: applyAll(p) → updated(p) ∨ warned(p)
+// PURITY: SHELL
+// EFFECT: Effect<void, PlatformError | DockerAccessError, FileSystem | Path | CommandExecutor>
+// INVARIANT: continues applying to other projects when one docker compose up fails with DockerCommandError
+// COMPLEXITY: O(n) where n = |projects|
+export const applyAllDockerGitProjects: Effect.Effect<
+  void,
+  PlatformError | DockerAccessError,
+  FileSystem | Path | CommandExecutor
+> = pipe(
+  ensureDockerDaemonAccess(process.cwd()),
+  Effect.zipRight(loadProjectIndex()),
+  Effect.flatMap((index) =>
+    index === null
+      ? Effect.void
+      : forEachProjectStatus(index.configPaths, (status) =>
+        pipe(
+          Effect.log(renderProjectStatusHeader(status)),
+          Effect.zipRight(
+            runDockerComposeUpWithPortCheck(status.projectDir).pipe(
+              Effect.catchTag("DockerCommandError", (error: DockerCommandError) =>
+                Effect.logWarning(
+                  `apply failed for ${status.projectDir}: ${renderError(error)}. Check the project docker-compose config (e.g. env files for merge conflicts, port conflicts in docker-compose.yml config) and retry.`
+                )),
+              Effect.catchTag("ConfigNotFoundError", (error) =>
+                Effect.logWarning(
+                  `Skipping ${status.projectDir}: ${renderError(error)}`
+                )),
+              Effect.catchTag("ConfigDecodeError", (error) =>
+                Effect.logWarning(
+                  `Skipping ${status.projectDir}: ${renderError(error)}`
+                )),
+              Effect.catchTag("PortProbeError", (error) =>
+                Effect.logWarning(
+                  `Skipping ${status.projectDir}: ${renderError(error)}`
+                )),
+              Effect.catchTag("FileExistsError", (error) =>
+                Effect.logWarning(
+                  `Skipping ${status.projectDir}: ${renderError(error)}`
+                )),
+              Effect.asVoid
+            )
+          )
+        ))
+  ),
+  Effect.asVoid
+)
diff --git a/packages/lib/src/usecases/projects.ts b/packages/lib/src/usecases/projects.ts
index 0bad9f49..3f53ce46 100644
--- a/packages/lib/src/usecases/projects.ts
+++ b/packages/lib/src/usecases/projects.ts
@@ -7,6 +7,7 @@ export {
   type ProjectLoadError,
   type ProjectStatus
 } from "./projects-core.js"
+export { applyAllDockerGitProjects } from "./projects-apply-all.js"
 export { deleteDockerGitProject } from "./projects-delete.js"
 export { downAllDockerGitProjects } from "./projects-down.js"
 export { listProjectItems, listProjects, listProjectSummaries, listRunningProjectItems } from "./projects-list.js"