diff --git a/.github/workflows/release.yaml b/.github/workflows/release.yaml
index a8e07d8..6e77159 100644
--- a/.github/workflows/release.yaml
+++ b/.github/workflows/release.yaml
@@ -191,8 +191,6 @@ jobs:
           set -euo pipefail
 
           version="${GITHUB_REF_NAME#v}"
-          declared="$(jq -er '.version' launcher/application.json)"
-          test "$declared" = "$version"
           archive_directory="$(mktemp -d)"
           archive_name=launcher-application.zip
           archive="${archive_directory}/${archive_name}"
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 61bde99..2db890e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,24 @@ All notable changes to Buzznode are documented here, following
 
 ## [Unreleased]
 
+## [0.5.3] - 2026-07-30
+
+### Changed
+
+- Replace the single Launcher viewer and container port with the `desktop`
+  `kasmweb` interface required by application schema version 2.
+
+## [0.5.2] - 2026-07-30
+
+### Changed
+
+- Remove fixed desktop-resolution configuration from the Launcher manifest
+  and local Docker workflow. KasmVNC now sizes the remote desktop for the
+  connected viewer.
+- Remove the unused product-version copy from the Launcher application
+  document. The root `VERSION` file remains authoritative.
+- Update the shared Launcher desktop base to `0.1.1`.
+
 ## [0.5.1] - 2026-07-30
 
 ### Changed
diff --git a/Dockerfile b/Dockerfile
index c30bea5..bc2c992 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -10,7 +10,7 @@
 # Buzznode connects to an existing relay and deliberately contains neither the
 # Buzz Desktop client nor local relay/backing services.
 
-ARG DESKTOP_IMAGE=ghcr.io/pdparchitect/launcher-image-base-desktop:0.1.0
+ARG DESKTOP_IMAGE=ghcr.io/pdparchitect/launcher-image-base-desktop:0.1.1
 
 # Upstream publishes a Linux package only for AMD64. Extract its headless tools
 # there; on ARM64, build the same immutable tag and exact commit from source.
diff --git a/Makefile b/Makefile
index ed0ac75..e634abd 100644
--- a/Makefile
+++ b/Makefile
@@ -12,7 +12,7 @@ TARGETARCH ?= $(word 2,$(subst /, ,$(PLATFORM)))
 BUZZ_VERSION ?= 0.5.2
 BUZZ_DEB_SHA256 ?= 3f022bc31ed579e045946e6acab8483639bcb94e62c1e70f67b97b22f8f879c5
 BUZZ_SOURCE_SHA ?= 3e48f1b2365d326ee1c9582448d86a99b44ecd5d
-DESKTOP_IMAGE ?= ghcr.io/pdparchitect/launcher-image-base-desktop:0.1.0
+DESKTOP_IMAGE ?= ghcr.io/pdparchitect/launcher-image-base-desktop:0.1.1
 CODEX_VERSION ?= 0.145.0
 CLAUDE_CODE_VERSION ?= 2.1.220
 CODEX_ACP_VERSION ?= 1.1.7
@@ -24,7 +24,6 @@ BIND_ADDRESS ?= 127.0.0.1
 PORT ?= 6904
 RELAY_URL ?=
 BUZZ_NETWORK ?=
-RESOLUTION ?= 1920x1080
 VNC_STATS ?= false
 VOLUME_PREFIX ?= buzznode
 
@@ -55,7 +54,7 @@ help:
 	@echo "  make url        Print the local desktop URL"
 	@echo "  make size-report  Report the graphical stack's share of the image"
 	@echo
-	@echo "Overrides: PORT=8080 RELAY_URL=wss://buzz.example RESOLUTION=1600x900"
+	@echo "Overrides: PORT=8080 RELAY_URL=wss://buzz.example"
 	@echo "           PLATFORM=linux/arm64 (default: $(PLATFORM))"
 	@echo "           BUZZ_NETWORK=buzz-local VNC_STATS=true"
 
@@ -89,8 +88,7 @@ check:
 	@grep -q 'BUZZNODE_CODEX_SANDBOX_MODE' overlay/etc/desktop/startup.d/05-agent-runtime-trust
 	@grep -q 'BUZZNODE_CODEX_SANDBOX_MODE' README.md
 	@grep -q '\[ -n "$${PS1:-}" \]' overlay/etc/bash.bashrc.d/buzznode-prompt.sh
-	@test "$$(jq -er '.schemaVersion' launcher/application.json)" = 1
-	@test "$$(jq -er '.version' launcher/application.json)" = "$$(tr -d '[:space:]' < VERSION)"
+	@test "$$(jq -er '.schemaVersion' launcher/application.json)" = 2
 	@! jq -e 'has("image")' launcher/application.json >/dev/null
 	@for asset in $$(jq -er '.media.icon, .media.cover, .media.screenshots[].source' launcher/application.json); do \
 		test -f "launcher/$$asset"; \
@@ -140,7 +138,6 @@ run: network
 			$(NETWORK_ARG) \
 			--publish "$(BIND_ADDRESS):$(PORT):6901" \
 			$(RELAY_ENV) \
-			--env "DESKTOP_RESOLUTION=$(RESOLUTION)" \
 			--env "DESKTOP_VNC_STATS=$(VNC_STATS)" \
 			--volume "$(VOLUME_PREFIX)-workspace:/workspace" \
 			--volume "$(VOLUME_PREFIX)-config:/home/agent/.config" \
diff --git a/README.md b/README.md
index 8d19eb3..2c9398c 100644
--- a/README.md
+++ b/README.md
@@ -338,9 +338,9 @@ Two consequences are worth knowing:
 
 - The desktop user is `agent`, homed at `/home/agent`, and the agent harness
   log lives in `/var/log/launcher-desktop`.
-- Desktop-level settings use the base's names — `DESKTOP_RESOLUTION`,
-  `DESKTOP_VNC_STATS`, `DESKTOP_TITLE`. Node-level settings keep their
-  `BUZZNODE_*` and `BUZZ_*` names.
+- Desktop-level settings use the base's names — `DESKTOP_VNC_STATS` and
+  `DESKTOP_TITLE`. Node-level settings keep their `BUZZNODE_*` and `BUZZ_*`
+  names.
 
 To build against a different base, override `DESKTOP_IMAGE`:
 
@@ -361,7 +361,7 @@ make smoke
 The desktop opens at <http://127.0.0.1:6904>. Useful overrides include:
 
 ```bash
-PORT=8080 RESOLUTION=1600x900 make up
+PORT=8080 make up
 PLATFORM=linux/arm64 make build
 DOCKER=podman make up
 ```
diff --git a/VERSION b/VERSION
index 4b9fcbe..be14282 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-0.5.1
+0.5.3
diff --git a/launcher/application.json b/launcher/application.json
index f915fb1..99bb6d9 100644
--- a/launcher/application.json
+++ b/launcher/application.json
@@ -1,6 +1,5 @@
 {
-  "schemaVersion": 1,
-  "version": "0.5.1",
+  "schemaVersion": 2,
   "id": "4398d440-4e4f-4137-b25e-303bfeb2a276",
   "slug": "buzznode",
   "name": "Buzznode",
@@ -21,12 +20,15 @@
       }
     ]
   },
-  "viewer": "kasmvnc",
-  "containerPort": 6901,
+  "interfaces": {
+    "desktop": {
+      "kind": "kasmweb",
+      "port": 6901,
+      "path": "/"
+    }
+  },
   "memory": "4g",
   "sharedMemory": "1g",
-  "resolutionEnvironment": "DESKTOP_RESOLUTION",
-  "resolution": "1920x1080",
   "environment": {
     "DESKTOP_VNC_STATS": "false"
   },