diff --git a/.fabro/Dockerfile b/.fabro/Dockerfile
index 6268a5484..9797ddb7f 100644
--- a/.fabro/Dockerfile
+++ b/.fabro/Dockerfile
@@ -55,7 +55,7 @@ RUN cargo install cargo-nextest --locked
 ENV CARGO_INCREMENTAL=0
 
 # Bun
-RUN curl -fsSL https://bun.sh/install | bash
+RUN curl -fsSL https://bun.sh/install | bash -s -- bun-v1.4.4
 ENV PATH="/root/.bun/bin:${PATH}"
 
 WORKDIR /root
diff --git a/.fabro/project.toml.bak b/.fabro/project.toml.bak
index 24f0d8384..75fb36868 100644
--- a/.fabro/project.toml.bak
+++ b/.fabro/project.toml.bak
@@ -40,7 +40,7 @@ RUN cargo install cargo-nextest --locked
 ENV CARGO_INCREMENTAL=0
 
 # Bun
-RUN curl -fsSL https://bun.sh/install | bash
+RUN curl -fsSL https://bun.sh/install | bash -s -- bun-v1.4.4
 ENV PATH="/root/.bun/bin:${PATH}"
 
 WORKDIR /root
diff --git a/.github/workflows/nightly.yml b/.github/workflows/nightly.yml
index b80b429f6..756b2f1b3 100644
--- a/.github/workflows/nightly.yml
+++ b/.github/workflows/nightly.yml
@@ -45,7 +45,7 @@ jobs:
       - uses: oven-sh/setup-bun@0c5077e51419868618aeaa5fe8019c62421857d6 # v2.2.0
         if: steps.skip.outputs.skip != 'true'
         with:
-          bun-version: 1.3.14
+          bun-version: 1.4.4
           no-cache: true
 
       - name: Install bun deps (for SPA verify)
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index f72e5c42c..a1e35eee2 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -49,7 +49,7 @@ jobs:
 
       - uses: oven-sh/setup-bun@0c5077e51419868618aeaa5fe8019c62421857d6 # v2.2.0
         with:
-          bun-version: 1.3.14
+          bun-version: 1.4.4
           no-cache: true
 
       - name: Install bun deps
diff --git a/.github/workflows/typescript.yml b/.github/workflows/typescript.yml
index f2086669e..1da01d53d 100644
--- a/.github/workflows/typescript.yml
+++ b/.github/workflows/typescript.yml
@@ -45,7 +45,7 @@ jobs:
           persist-credentials: false
       - uses: oven-sh/setup-bun@0c5077e51419868618aeaa5fe8019c62421857d6 # v2.2.0
         with:
-          bun-version: 1.3.14
+          bun-version: 1.4.4
       - run: bun install --frozen-lockfile
       - run: cd apps/fabro-web && bun run typecheck
       - run: cd lib/packages/fabro-api-client && bun run typecheck
@@ -61,7 +61,7 @@ jobs:
           persist-credentials: false
       - uses: oven-sh/setup-bun@0c5077e51419868618aeaa5fe8019c62421857d6 # v2.2.0
         with:
-          bun-version: 1.3.14
+          bun-version: 1.4.4
       - run: bun install --frozen-lockfile
       - run: cd apps/fabro-web && bun run test
 
@@ -76,7 +76,7 @@ jobs:
           persist-credentials: false
       - uses: oven-sh/setup-bun@0c5077e51419868618aeaa5fe8019c62421857d6 # v2.2.0
         with:
-          bun-version: 1.3.14
+          bun-version: 1.4.4
       - run: bun install --frozen-lockfile
       - uses: dtolnay/rust-toolchain@631a55b12751854ce901bb631d5902ceb48146f7 # stable
         with:
diff --git a/apps/fabro-web/app/install-app.test.tsx b/apps/fabro-web/app/install-app.test.tsx
index 8d34bd31b..99356a25c 100644
--- a/apps/fabro-web/app/install-app.test.tsx
+++ b/apps/fabro-web/app/install-app.test.tsx
@@ -1,8 +1,9 @@
 import { afterEach, describe, expect, mock, test } from "bun:test";
 import type { AxiosAdapter } from "axios";
-import { StrictMode } from "react";
+import { StrictMode, type ReactNode } from "react";
 import { MemoryRouter, Route, Routes } from "react-router";
 import TestRenderer, { act } from "react-test-renderer";
+import { SWRConfig } from "swr";
 
 import InstallApp from "./install-app";
 import { generatedAxios } from "./lib/api-client";
@@ -25,6 +26,15 @@ const SESSION_RESPONSE = {
 
 const originalAdapter = generatedAxios.defaults.adapter;
 
+function createInstallRenderer(children: ReactNode) {
+  // Each test gets its own session cache and in-flight request registry.
+  return TestRenderer.create(
+    <SWRConfig value={{ provider: () => new Map() }}>
+      {children}
+    </SWRConfig>,
+  );
+}
+
 type TestWindow = {
   history: {
     state: unknown;
@@ -209,7 +219,7 @@ describe("InstallApp", () => {
 
       let renderer: TestRenderer.ReactTestRenderer | null = null;
       await act(async () => {
-        renderer = TestRenderer.create(
+        renderer = createInstallRenderer(
           <StrictMode>
             <MemoryRouter initialEntries={["/install/github?error=github-app-manifest-conversion-failed"]}>
               <Routes>
@@ -281,7 +291,7 @@ describe("InstallApp", () => {
 
       let renderer: TestRenderer.ReactTestRenderer | null = null;
       await act(async () => {
-        renderer = TestRenderer.create(
+        renderer = createInstallRenderer(
           <MemoryRouter initialEntries={["/install/github/done?token=test-install-token"]}>
             <Routes>
               <Route path="/install/*" element={<InstallApp />} />
@@ -369,7 +379,7 @@ describe("InstallApp", () => {
 
       let renderer: TestRenderer.ReactTestRenderer | null = null;
       await act(async () => {
-        renderer = TestRenderer.create(
+        renderer = createInstallRenderer(
           <MemoryRouter initialEntries={["/install/object-store"]}>
             <Routes>
               <Route path="/install/*" element={<InstallApp />} />
@@ -465,7 +475,7 @@ describe("InstallApp", () => {
 
       let renderer: TestRenderer.ReactTestRenderer | null = null;
       await act(async () => {
-        renderer = TestRenderer.create(
+        renderer = createInstallRenderer(
           <MemoryRouter initialEntries={["/install/object-store"]}>
             <Routes>
               <Route path="/install/*" element={<InstallApp />} />
@@ -540,7 +550,7 @@ describe("InstallApp", () => {
 
       let renderer: TestRenderer.ReactTestRenderer | null = null;
       await act(async () => {
-        renderer = TestRenderer.create(
+        renderer = createInstallRenderer(
           <MemoryRouter initialEntries={["/install/review"]}>
             <Routes>
               <Route path="/install/*" element={<InstallApp />} />
@@ -606,7 +616,7 @@ describe("InstallApp", () => {
 
       let renderer: TestRenderer.ReactTestRenderer | null = null;
       await act(async () => {
-        renderer = TestRenderer.create(
+        renderer = createInstallRenderer(
           <MemoryRouter initialEntries={["/install/review"]}>
             <Routes>
               <Route path="/install/*" element={<InstallApp />} />
@@ -703,7 +713,7 @@ describe("InstallApp", () => {
 
       let renderer: TestRenderer.ReactTestRenderer | null = null;
       await act(async () => {
-        renderer = TestRenderer.create(
+        renderer = createInstallRenderer(
           <MemoryRouter initialEntries={["/install/sandbox"]}>
             <Routes>
               <Route path="/install/*" element={<InstallApp />} />
@@ -797,7 +807,7 @@ describe("InstallApp", () => {
 
       let renderer: TestRenderer.ReactTestRenderer | null = null;
       await act(async () => {
-        renderer = TestRenderer.create(
+        renderer = createInstallRenderer(
           <MemoryRouter initialEntries={["/install/sandbox"]}>
             <Routes>
               <Route path="/install/*" element={<InstallApp />} />
@@ -885,7 +895,7 @@ describe("InstallApp", () => {
 
       let renderer: TestRenderer.ReactTestRenderer | null = null;
       await act(async () => {
-        renderer = TestRenderer.create(
+        renderer = createInstallRenderer(
           <MemoryRouter initialEntries={["/install/review"]}>
             <Routes>
               <Route path="/install/*" element={<InstallApp />} />
@@ -969,7 +979,7 @@ describe("InstallApp", () => {
 
       let renderer: TestRenderer.ReactTestRenderer | null = null;
       await act(async () => {
-        renderer = TestRenderer.create(
+        renderer = createInstallRenderer(
           <MemoryRouter initialEntries={["/install/llm"]}>
             <Routes>
               <Route path="/install/*" element={<InstallApp />} />
@@ -1047,7 +1057,7 @@ describe("InstallApp", () => {
 
       let renderer: TestRenderer.ReactTestRenderer | null = null;
       await act(async () => {
-        renderer = TestRenderer.create(
+        renderer = createInstallRenderer(
           <MemoryRouter initialEntries={["/install/llm"]}>
             <Routes>
               <Route path="/install/*" element={<InstallApp />} />
@@ -1117,7 +1127,7 @@ describe("InstallApp", () => {
 
       let renderer: TestRenderer.ReactTestRenderer | null = null;
       await act(async () => {
-        renderer = TestRenderer.create(
+        renderer = createInstallRenderer(
           <MemoryRouter initialEntries={["/install/review"]}>
             <Routes>
               <Route path="/install/*" element={<InstallApp />} />
@@ -1178,7 +1188,7 @@ describe("InstallApp", () => {
 
       let renderer: TestRenderer.ReactTestRenderer | null = null;
       await act(async () => {
-        renderer = TestRenderer.create(
+        renderer = createInstallRenderer(
           <MemoryRouter initialEntries={["/install/review"]}>
             <Routes>
               <Route path="/install/*" element={<InstallApp />} />
@@ -1247,7 +1257,7 @@ describe("InstallApp", () => {
 
       let renderer: TestRenderer.ReactTestRenderer | null = null;
       await act(async () => {
-        renderer = TestRenderer.create(
+        renderer = createInstallRenderer(
           <MemoryRouter initialEntries={["/install/llm"]}>
             <Routes>
               <Route path="/install/*" element={<InstallApp />} />