prisma · kristof-siket · Jul 14, 2026 · Jul 14, 2026 · Jul 14, 2026 · Jul 14, 2026
diff --git a/docs/product/command-spec.md b/docs/product/command-spec.md
@@ -703,7 +703,7 @@ prisma-cli project show --json
 prisma-cli project show --project proj_123 --json
 ```
 
-## `prisma-cli project create <name>`
+## `prisma-cli project create <name> [--region <region>]`
 
 Purpose:
 
@@ -713,6 +713,7 @@ Behavior:
 
 - requires auth
 - creates a Project in the authenticated workspace
+- `--region <region>` sets the Project's default Compute region; Apps created in the Project inherit this region unless overridden at deploy time with `--region`; when omitted the platform assigns the default region
 - writes `.prisma/local.json` with Workspace and Project IDs
 - ensures `.prisma/` is ignored by Git
 - does not create a Branch, App, Deployment, database, or Git repository connection
@@ -722,6 +723,7 @@ Examples:
 
 ```bash
 prisma-cli project create my-app
+prisma-cli project create my-app --region us-east-1
 prisma-cli project create my-app --json
 ```
 

diff --git a/packages/cli/src/commands/project/index.ts b/packages/cli/src/commands/project/index.ts
@@ -186,15 +186,18 @@ function createProjectCreateCommand(runtime: CliRuntime): Command {
     "project.create",
   );
 
-  command.argument("<name>", "Project name");
+  command
+    .argument("<name>", "Project name")
+    .addOption(new Option("--region <region>", "Prisma Compute region id"));
   addGlobalFlags(command);
 
   command.action(async (name, options) => {
+    const region = (options as { region?: string }).region;
     await runCommand<ProjectSetupResult>(
       runtime,
       "project.create",
       options as Record<string, unknown>,
-      (context) => runProjectCreate(context, String(name)),
+      (context) => runProjectCreate(context, String(name), { region }),
       {
         renderHuman: (context, descriptor, result) =>
           renderProjectSetup(context, descriptor, result),

diff --git a/packages/cli/src/controllers/app.ts b/packages/cli/src/controllers/app.ts
@@ -18,7 +18,6 @@
 import { matchError, Result } from "better-result";
 import open from "open";
 import { FileTokenStorage } from "../adapters/token-storage";
-import { DEFAULT_REGION } from "../lib/app/app-interaction";
 import {
   type AppRecord,
   createAppProvider,
@@ -575,7 +574,7 @@
  });
 }

 async function runSingleAppDeploy(
  context: CommandContext,
  appName: string | undefined,
  options: AppDeployOptions | undefined,
@@ -645,6 +644,7 @@
     await requireProviderAndDeployProjectContext(context, options?.projectRef, {
       branch,
       createProjectName: options?.createProjectName,
+      createProjectRegion: deployRegion?.value,
       envProjectId,
       localPin,
     });
@@ -869,6 +869,7 @@
           entrypoint ?? buildSettingsResolution.settings.entrypoint ?? null,
         httpPort: runtime.port,
         region: deployResult.app.region ?? selectedApp.region ?? null,
+        regionSource: deployRegion?.annotation ?? null,
         envVars: envVarNames(envVars),
       },
       durationMs: deployDurationMs,
@@ -1170,9 +1171,9 @@
        ...deployment.deployment,
        live: providerLiveDeploymentId
          ? deployment.deployment.id === providerLiveDeploymentId
          : knownLiveDeploymentId
            ? deployment.deployment.id === knownLiveDeploymentId
            : deployment.deployment.live,
      },
    },
    warnings: [],
@@ -1551,10 +1552,10 @@
      });
    }

    await sleep(
      Math.min(pollIntervalMs, Math.max(deadline - Date.now(), 0)),
      context.runtime.signal,
    );
    current = await target.provider
      .showDomain(current.id, { signal: context.runtime.signal })
      .catch((error) => {
@@ -2116,7 +2117,7 @@
  const compute = await resolveComputeManagementContext(
    context,
    options?.configTarget,
    commandName.replace(/^app /, ""),
  );
  const branch = resolveDomainBranch(options?.branchName);
  if (toBranchKind(branch.name) !== "production") {
@@ -2249,7 +2250,7 @@
 }

 function normalizeDomainHostname(hostname: string): string {
  const normalized = hostname.trim().replace(/\.$/, "").toLowerCase();
  if (!isValidDomainHostname(normalized)) {
    throw new CliError({
      code: "DOMAIN_HOSTNAME_INVALID",
@@ -2284,13 +2285,13 @@
  }

  return labels.every((label) =>
    /^[a-z0-9](?:[a-z0-9-]{0,61}[a-z0-9])?$/.test(label),
  );
 }

 function sameDomainHostname(left: string, right: string): boolean {
  return (
    left.trim().replace(/\.$/, "").toLowerCase() ===
    right.trim().replace(/\.$/, "").toLowerCase()
  );
 }
@@ -2379,7 +2380,7 @@
  }
 }

 function domainCommandError(
  command: AppDomainCommand,
  error: unknown,
  hostname: string,
@@ -2516,7 +2517,7 @@
    text.includes("no cname") ||
    text.includes("cname record") ||
    text.includes("no a/aaaa") ||
    /\bcname(?:s)?\s+to\b/.test(text)
  );
 }

@@ -2545,7 +2546,7 @@

 function extractDomainDnsTarget(error: DomainApiError): string | null {
  const text = `${error.hint ?? ""} ${error.message}`;
  const match = /\b((?:[a-z0-9-]+\.)+prisma\.build)\b/i.exec(text);
  return match?.[1]?.toLowerCase() ?? null;
 }

@@ -2581,7 +2582,7 @@
    return 0;
  }

  const match = /^(\d+)(ms|s|m|h)$/.exec(trimmed);
  if (!match) {
    throw usageError(
      `Invalid timeout "${value}"`,
@@ -2597,11 +2598,11 @@
  const multiplier =
    unit === "h"
      ? 60 * 60 * 1000
      : unit === "m"
        ? 60 * 1000
        : unit === "s"
          ? 1000
          : 1;
  return amount * multiplier;
 }

@@ -2770,7 +2771,7 @@
     matchedAnnotation: string;
     newAnnotation: string;
     requestedRegion: MergedDeployInput | undefined;
-    newAppRegion: string;
+    newAppRegion: string | undefined;
     firstDeploy: boolean;
   },
 ): Promise<{
@@ -2842,7 +2843,7 @@
   matches: AppRecord[],
   targetName: string,
   requestedRegion: MergedDeployInput | undefined,
-  newAppRegion: string,
+  newAppRegion: string | undefined,
   firstDeploy: boolean,
 ): Promise<{
   appId?: string;
@@ -2923,8 +2924,8 @@
 
 function deployNewAppRegion(
   configRegion: MergedDeployInput | undefined,
-): string {
-  return configRegion?.value ?? DEFAULT_REGION;
+): string | undefined {
+  return configRegion?.value;
 }
 
 async function resolveExistingAppSelection(
@@ -3324,6 +3325,7 @@
   options: {
     branch?: ResolvedDeployBranch;
     createProjectName?: string;
+    createProjectRegion?: string;
     envProjectId?: string;
     localPin: LocalResolutionPinReadResult;
   },
@@ -3375,7 +3377,7 @@
    listProjects: () =>
      listRealWorkspaceProjects(
        client,
        authState.workspace!,
        context.runtime.signal,
      ),
    commandName: options?.commandName,
@@ -3409,7 +3411,7 @@
  };
 }

 async function resolveDeployProjectContext(
  context: CommandContext,
  client: ManagementApiClient,
  provider: ReturnType<typeof createAppProvider>,
@@ -3417,6 +3419,7 @@
   options: {
     branch?: ResolvedDeployBranch;
     createProjectName?: string;
+    createProjectRegion?: string;
     envProjectId?: string;
     localPin: LocalResolutionPinReadResult;
   },
@@ -3469,6 +3472,7 @@
       projectName,
       workspace,
       context.runtime.signal,
+      options.createProjectRegion,
     );
     return withRemoteDeployBranch(
       provider,
@@ -3567,6 +3571,7 @@
       provider,
       workspace,
       projects,
+      options.createProjectRegion,
     );
     return withRemoteDeployBranch(
       provider,
@@ -3588,6 +3593,7 @@
   provider: ReturnType<typeof createAppProvider>,
   workspace: AuthWorkspace,
   projects: ProjectCandidate[],
+  createProjectRegion?: string,
 ): Promise<Omit<ResolvedAppProjectContext, "branch">> {
   const setup = await promptForProjectSetupChoice({
     context,
@@ -3598,6 +3604,7 @@
         projectName,
         workspace,
         context.runtime.signal,
+        createProjectRegion,
       ),
     cancel: {
       why: "Deploy needs a Project before it can continue.",
@@ -3626,9 +3633,10 @@
   projectName: string,
   workspace: AuthWorkspace,
   signal: AbortSignal,
+  region?: string,
 ): Promise<ProjectCandidate> {
   const created = await provider
-    .createProject({ name: projectName, signal })
+    .createProject({ name: projectName, region, signal })
     .catch((error) => {
       throw projectCreateFailedError(error, projectName, workspace, {
         nextSteps: [
@@ -3646,6 +3654,9 @@
   return {
     id: created.id,
     name: created.name,
+    ...(created.defaultRegion != null
+      ? { defaultRegion: created.defaultRegion }
+      : {}),
     workspace,
   };
 }
@@ -4084,7 +4095,7 @@
      continue;
    }

    const configFile = await detectFrameworkConfigFile(cwd, framework, signal);
    if (
      !configFile.exists &&
      !hasAnyPackageDependency(packageJson, framework.detectPackages)
@@ -4097,8 +4108,8 @@
    const annotation =
      framework.key === "nextjs" && configFile.standalone
        ? "standalone output detected"
        : configFile.exists
          ? `detected from ${path.basename(configFile.path!)}`
          : "detected from package.json";

    return {
@@ -4121,10 +4132,10 @@
    const filePath = path.join(cwd, candidate);
    signal.throwIfAborted();
    try {
      const content = await readFile(filePath, { encoding: "utf8", signal });
      return {
        exists: true,
        standalone: /\boutput\s*:\s*["'`]standalone["'`]/.test(content),
        path: filePath,
      };
    } catch (error) {

diff --git a/packages/cli/src/controllers/project.ts b/packages/cli/src/controllers/project.ts
@@ -263,6 +263,7 @@ export async function runProjectShow(
 export async function runProjectCreate(
   context: CommandContext,
   projectName: string,
+  options?: { region?: string },
 ): Promise<CommandSuccess<ProjectSetupResult>> {
   const authState = await requireAuthenticatedAuthState(context);
   const workspace = authState.workspace;
@@ -295,7 +296,11 @@ export async function runProjectCreate(
   const provider = createAppProvider(client);
   const name = projectName.trim();
   const created = await provider
-    .createProject({ name, signal: context.runtime.signal })
+    .createProject({
+      name,
+      region: options?.region,
+      signal: context.runtime.signal,
+    })
     .catch((error) => {
       throw projectCreateFailedError(error, name, workspace, {
         nextSteps: [
@@ -314,6 +319,9 @@ export async function runProjectCreate(
     {
       id: created.id,
       name: created.name,
+      ...(created.defaultRegion != null
+        ? { defaultRegion: created.defaultRegion }
+        : {}),
     },
     "created",
   );
@@ -1444,6 +1452,9 @@ export async function listRealWorkspaceProjects(
         ...("url" in project && typeof project.url === "string"
           ? { url: project.url }
           : {}),
+        ...("defaultRegion" in project
+          ? { defaultRegion: project.defaultRegion }
+          : {}),
         slug:
           "slug" in project && typeof project.slug === "string"
             ? project.slug

diff --git a/packages/cli/src/lib/app/app-interaction.ts b/packages/cli/src/lib/app/app-interaction.ts
@@ -1,14 +1,9 @@
-import type {
-  AppInfo,
-  DeployInteraction,
-  RegionInfo,
-} from "@prisma/compute-sdk";
+import type { AppInfo, DeployInteraction } from "@prisma/compute-sdk";
 
 import { selectPrompt, textPrompt } from "../../shell/prompt";
 import type { CommandContext } from "../../shell/runtime";
 
 const CREATE_NEW_APP = "__create_new_app__";
-export const DEFAULT_REGION = "eu-central-1";
 
 export function createDeployInteraction(
   context: CommandContext,
@@ -52,8 +47,5 @@ export function createDeployInteraction(
           !value?.trim() ? "App name is required" : undefined,
       }).then((value) => value.trim());
     },
-    async selectRegion(_regions: RegionInfo[]): Promise<string> {
-      return DEFAULT_REGION;
-    },
   };
 }
diff --git a/packages/cli/src/lib/app/app-provider.ts b/packages/cli/src/lib/app/app-provider.ts
@@ -37,6 +37,7 @@ export interface AppRecord {
 export interface ProjectRecord {
   id: string;
   name: string;
+  defaultRegion?: string;
 }
 
 export interface BranchRecord {
@@ -144,6 +145,7 @@ export class DomainApiError extends Error {
 export interface AppProvider {
   createProject(options: {
     name: string;
+    region?: string;
     signal?: AbortSignal;
   }): Promise<ProjectRecord>;
   resolveBranch(
@@ -279,6 +281,7 @@ export function createAppProvider(
     async createProject(options) {
       const projectResult = await sdk.createProject({
         name: options.name,
+        region: options.region,
         signal: options.signal,
       });
       if (projectResult.isErr()) {
@@ -288,6 +291,7 @@ export function createAppProvider(
       return {
         id: projectResult.value.id,
         name: projectResult.value.name,
+        defaultRegion: projectResult.value.defaultRegion,
       };
     },
 

diff --git a/packages/cli/src/lib/project/resolution.ts b/packages/cli/src/lib/project/resolution.ts
@@ -753,11 +753,14 @@ function buildProjectRecoveryCommands(
 }
 
 function toProjectSummary(
-  project: Pick<ProjectCandidate, "id" | "name" | "url">,
+  project: Pick<ProjectCandidate, "id" | "name" | "url" | "defaultRegion">,
 ): ProjectSummary {
   return {
     id: project.id,
     name: project.name,
     ...(project.url ? { url: project.url } : {}),
+    ...(project.defaultRegion != null
+      ? { defaultRegion: project.defaultRegion }
+      : {}),
   };
 }
diff --git a/packages/cli/src/lib/project/setup.ts b/packages/cli/src/lib/project/setup.ts
@@ -145,12 +145,15 @@ function localStateWriteFailedError(
 }
 
 export function toProjectSummary(
-  project: Pick<ProjectCandidate, "id" | "name" | "url">,
+  project: Pick<ProjectCandidate, "id" | "name" | "url" | "defaultRegion">,
 ): ProjectSummary {
   return {
     id: project.id,
     name: project.name,
     ...(project.url ? { url: project.url } : {}),
+    ...(project.defaultRegion != null
+      ? { defaultRegion: project.defaultRegion }
+      : {}),
   };
 }
 

diff --git a/packages/cli/src/presenters/app.ts b/packages/cli/src/presenters/app.ts
@@ -97,6 +97,19 @@ export function renderAppDeploy(
             },
           ]),
       { label: "Logs", value: logsCommand },
+      ...(result.deploySettings.region &&
+      result.deploySettings.regionSource === null
+        ? [
+            {
+              label: "Region",
+              value: result.deploySettings.region,
+              origin:
+                result.project.defaultRegion != null
+                  ? "project default"
+                  : "platform default — pass --region to choose",
+            },
+          ]
+        : []),
       ...(deployUsedComputeConfig(result)
         ? []
         : [

diff --git a/packages/cli/src/presenters/project.ts b/packages/cli/src/presenters/project.ts
@@ -57,13 +57,20 @@ export function renderProjectList(
     "name".length,
     ...result.projects.map((project) => stringWidth(project.name)),
   );
+  const idWidth = Math.max(
+    "id".length,
+    ...result.projects.map((project) => project.id.length),
+  );
   lines.push(rail);
   lines.push(
-    `${rail}  ${ui.accent(padDisplay("name", nameWidth))}  ${ui.accent("id")}`,
+    `${rail}  ${ui.accent(padDisplay("name", nameWidth))}  ${ui.accent(padDisplay("id", idWidth))}  ${ui.accent("region")}`,
   );
   for (const project of result.projects) {
+    const region = project.defaultRegion
+      ? project.defaultRegion
+      : ui.dim("none");
     lines.push(
-      `${rail}  ${padDisplay(project.name, nameWidth)}  ${project.id}`,
+      `${rail}  ${padDisplay(project.name, nameWidth)}  ${padDisplay(project.id, idWidth)}  ${region}`,
     );
   }
 
@@ -356,6 +363,12 @@ function renderBoundProjectShow(
     lines.push(`${rail}  ${ui.dim("→")} ${ui.link(result.project.url)}`);
   }
 
+  if (result.project.defaultRegion) {
+    lines.push(
+      `${rail}  ${ui.accent(padDisplay("region", keyWidth))}  ${ui.dim(result.project.defaultRegion)}`,
+    );
+  }
+
   lines.push(
     ...renderResolvedProjectContextBlock(context.ui, {
       workspace: result.workspace,

diff --git a/packages/cli/src/types/app.ts b/packages/cli/src/types/app.ts
@@ -49,6 +49,8 @@ export interface AppDeploySettings {
   entrypoint: string | null;
   httpPort: number;
   region: string | null;
+  /** Annotation from the deploy input that produced region (e.g. "set by --region"). Null when the server assigned the region with no explicit input. */
+  regionSource: string | null;
   envVars: string[];
 }
 

diff --git a/packages/cli/src/types/project.ts b/packages/cli/src/types/project.ts
@@ -4,6 +4,7 @@ export interface ProjectSummary {
   id: string;
   name: string;
   url?: string;
+  defaultRegion?: string | null;
 }
 
 export type ProjectSource =

diff --git a/packages/cli/src/use-cases/project.ts b/packages/cli/src/use-cases/project.ts
@@ -56,11 +56,15 @@ function toProjectSummary(project: {
   id: string;
   name: string;
   url?: string;
+  defaultRegion?: string | null;
 }): ProjectSummary {
   return {
     id: project.id,
     name: project.name,
     ...(project.url ? { url: project.url } : {}),
+    ...(project.defaultRegion != null
+      ? { defaultRegion: project.defaultRegion }
+      : {}),
   };
 }