diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a49ebab3..b4f2882d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -15,9 +15,15 @@ permissions:
 
 jobs:
   lint:
-    runs-on: ubuntu-latest
+    runs-on: [self-hosted, node-b, linux, x64]
     steps:
       - uses: actions/checkout@v7
+      # The self-hosted runner image has no Rust toolchain preinstalled,
+      # unlike ubuntu-latest. Pinned to match rust-toolchain.toml.
+      - uses: dtolnay/rust-toolchain@master
+        with:
+          toolchain: "1.95.0"
+          components: clippy,rustfmt
       - uses: Swatinem/rust-cache@v2
       - uses: actions/setup-node@v7
         with:
@@ -36,9 +42,15 @@ jobs:
       - run: cargo clippy --workspace --all-features --locked -- -D warnings
 
   test:
-    runs-on: ubuntu-latest
+    runs-on: [self-hosted, node-b, linux, x64]
     steps:
       - uses: actions/checkout@v7
+      # The self-hosted runner image has no Rust toolchain preinstalled,
+      # unlike ubuntu-latest. Pinned to match rust-toolchain.toml.
+      - uses: dtolnay/rust-toolchain@master
+        with:
+          toolchain: "1.95.0"
+          components: clippy,rustfmt
       - uses: Swatinem/rust-cache@v2
       - uses: actions/setup-node@v7
         with:
@@ -52,9 +64,15 @@ jobs:
       - run: cargo test --workspace --all-features --locked
 
   build:
-    runs-on: ubuntu-latest
+    runs-on: [self-hosted, node-b, linux, x64]
     steps:
       - uses: actions/checkout@v7
+      # The self-hosted runner image has no Rust toolchain preinstalled,
+      # unlike ubuntu-latest. Pinned to match rust-toolchain.toml.
+      - uses: dtolnay/rust-toolchain@master
+        with:
+          toolchain: "1.95.0"
+          components: clippy,rustfmt
       - uses: Swatinem/rust-cache@v2
       - uses: actions/setup-node@v7
         with:
@@ -68,7 +86,7 @@ jobs:
       - run: cargo build --workspace --all-features --locked
 
   ui:
-    runs-on: ubuntu-latest
+    runs-on: [self-hosted, node-b, linux, x64]
     strategy:
       matrix:
         project: [ui, client]
@@ -85,7 +103,7 @@ jobs:
         run: npm run build
 
   ui-e2e:
-    runs-on: ubuntu-latest
+    runs-on: [self-hosted, node-b, linux, x64]
     steps:
       - uses: actions/checkout@v7
       - uses: actions/setup-node@v7