diff --git a/fork/manifest.json b/fork/manifest.json
index 350d1b614841..5177daf3e00c 100644
--- a/fork/manifest.json
+++ b/fork/manifest.json
@@ -612,6 +612,11 @@
       "marker": "displacing",
       "note": "Fork edit to an upstream file (+17/-1 vs baseline). Marker is a string the fork's edit introduces and upstream does not contain, so a merge that reverts the edit fails fork:verify."
     },
+    {
+      "file": "packages/tui/src/ui/dialog-confirm.tsx",
+      "marker": "Defaults to the safe side",
+      "note": "Fork edit to an upstream file. Defaults DialogConfirm's focus to \"cancel\" instead of \"confirm\" so a stray or fast-follow Enter press can't confirm a consequential action (e.g. a model install) with zero deliberate input. Marker is a string the fork's edit introduces and upstream does not contain, so a merge that reverts the edit fails fork:verify."
+    },
     {
       "file": "packages/tui/test/cli/cmd/tui/provider-options.test.ts",
       "marker": "fork: LAN discovery for llama-skein host",
diff --git a/packages/opencode/script/build-local.ts b/packages/opencode/script/build-local.ts
index 5fc0328c10de..7dfccf38fa15 100644
--- a/packages/opencode/script/build-local.ts
+++ b/packages/opencode/script/build-local.ts
@@ -18,13 +18,21 @@ import { fileURLToPath } from "url"
 import pkg from "../package.json"
 
 const dir = path.dirname(fileURLToPath(import.meta.url))
-const branch = (await $`git branch --show-current`.text()).trim() || "local"
 const sha = (await $`git rev-parse --short HEAD`.text().catch(() => "unknown")).trim()
 const dirty = (await $`git status --porcelain`.text()).trim().length > 0 ? "-dirty" : ""
 const timestamp = new Date().toISOString().replace(/[-:]/g, "").replace(/\.\d+Z$/, "Z")
 
+// The channel picks which `opencode-<channel>.db` session database the built
+// binary opens (core/src/database/database.ts). It used to default to
+// `git branch --show-current`, so every differently-named branch a local
+// build ran from silently forked off its own session history — a build from
+// a feature branch made the whole session list "disappear" until you
+// switched back. `sha`+`dirty`+`timestamp` in OPENCODE_VERSION already give
+// every build a distinguishable identity, so the channel no longer needs to
+// track the branch: pin it to a stable value and let a real channel split
+// (e.g. isolated testing) be an explicit `OPENCODE_CHANNEL=` override.
 await $`bun run ${path.join(dir, "build.ts")} --single ${process.argv.slice(2)}`.env({
   ...process.env,
   OPENCODE_VERSION: process.env.OPENCODE_VERSION ?? `${pkg.version}-dev+${sha}${dirty}.${timestamp}`,
-  OPENCODE_CHANNEL: process.env.OPENCODE_CHANNEL ?? branch,
+  OPENCODE_CHANNEL: process.env.OPENCODE_CHANNEL ?? "dev",
 })
diff --git a/packages/tui/src/component/dialog-gallery.tsx b/packages/tui/src/component/dialog-gallery.tsx
index 9714b4808625..e22df434993d 100644
--- a/packages/tui/src/component/dialog-gallery.tsx
+++ b/packages/tui/src/component/dialog-gallery.tsx
@@ -270,6 +270,7 @@ export function DialogGalleryOperations(props: { focus?: string }) {
   const project = useProject()
   const toast = useToast()
   const seenTerminal = new Set<string>()
+  let baselined = false
 
   const [ops, { refetch }] = createResource(async () => {
     const res = await sdk.client.gallery.operations({ workspace: project.workspace.current() })
@@ -280,9 +281,20 @@ export function DialogGalleryOperations(props: { focus?: string }) {
   onCleanup(() => clearInterval(timer))
 
   // A finished install means a new model on that host: refresh the picker so
-  // it shows up without a restart (§7.4).
+  // it shows up without a restart (§7.4). `seenTerminal` is per-mount, so the
+  // first resolution has to record already-terminal operations as a baseline
+  // rather than toast for them — otherwise reopening this screen replays a
+  // success/failure toast for every install that finished while it was
+  // closed, every single time.
   createEffect(() => {
-    for (const op of ops.latest ?? []) {
+    if (ops.loading) return
+    const list = ops.latest ?? []
+    if (!baselined) {
+      baselined = true
+      for (const op of list) if (TERMINAL.has(op.phase)) seenTerminal.add(op.id)
+      return
+    }
+    for (const op of list) {
       if (!TERMINAL.has(op.phase) || seenTerminal.has(op.id)) continue
       seenTerminal.add(op.id)
       if (op.phase === "succeeded") {
diff --git a/packages/tui/src/ui/dialog-confirm.tsx b/packages/tui/src/ui/dialog-confirm.tsx
index a09847af2f9b..cb97908d3e10 100644
--- a/packages/tui/src/ui/dialog-confirm.tsx
+++ b/packages/tui/src/ui/dialog-confirm.tsx
@@ -19,8 +19,13 @@ export type DialogConfirmResult = boolean | undefined
 export function DialogConfirm(props: DialogConfirmProps) {
   const dialog = useDialog()
   const { theme } = useTheme()
+  // Defaults to the safe side: this dialog exists to gate a consequential
+  // action (install a model, delete something, etc.), and an Enter press
+  // that arrives before the user has looked at it — terminal input lag, a
+  // fast-follow keypress from whatever opened this dialog — must not
+  // confirm that action by default.
   const [store, setStore] = createStore({
-    active: "confirm" as "confirm" | "cancel",
+    active: "cancel" as "confirm" | "cancel",
   })
 
   useBindings(() => ({
diff --git a/packages/tui/src/ui/dialog-select.tsx b/packages/tui/src/ui/dialog-select.tsx
index a94fda28652b..63eb0b5b310e 100644
--- a/packages/tui/src/ui/dialog-select.tsx
+++ b/packages/tui/src/ui/dialog-select.tsx
@@ -168,7 +168,16 @@ export function DialogSelect<T>(props: DialogSelectProps<T>) {
   })
 
   const filtered = createMemo(() => {
-    if (props.skipFilter || props.renderFilter === false) return props.options.filter((x) => x.disabled !== true)
+    // Every current caller that sets `disabled: true` (a loading/status line,
+    // an offline or incompatible entry with a reason in its description) does
+    // so to show something informational and inert — not to make the row
+    // vanish. Dropping it here made it invisible instead, and left
+    // `store.selected` — a bare index into whatever's left — free to silently
+    // resolve onto a real, unrelated row once the list reshuffled around it
+    // (e.g. once async data replaced a loading placeholder), with no user
+    // input in between. moveTo/submit/onMouseUp now refuse a disabled target
+    // directly, so keeping disabled rows in place is safe as well as visible.
+    if (props.skipFilter || props.renderFilter === false) return props.options
     const needle = store.filter.toLowerCase()
     const options = pipe(
       props.options,
@@ -305,22 +314,38 @@ export function DialogSelect<T>(props: DialogSelectProps<T>) {
 
   function move(direction: number) {
     if (props.locked) return
-    if (flat().length === 0) return
-    let next = store.selected + direction
-    if (next < 0) next = flat().length - 1
-    if (next >= flat().length) next = 0
-    moveTo(next, true)
+    const list = flat()
+    if (list.length === 0) return
+    // A disabled row is an informational/status line, never a destination —
+    // step past it in the requested direction rather than landing on it.
+    // Bounded by list.length so an all-disabled list (nothing selectable)
+    // just leaves the selection where it is instead of spinning forever.
+    let next = store.selected
+    for (let i = 0; i < list.length; i++) {
+      next += direction
+      if (next < 0) next = list.length - 1
+      if (next >= list.length) next = 0
+      if (list[next]?.disabled !== true) {
+        moveTo(next, true)
+        return
+      }
+    }
   }
 
   function moveTo(next: number, center = false, preserve = true) {
+    // Every caller of moveTo (arrow-key nav, mouse hover/down, the
+    // props.current/filter-change effects) ends up here, so this is the one
+    // place that has to refuse a disabled target — otherwise a row that's
+    // disabled today can silently become "selected" the instant the list
+    // reshuffles under it (e.g. once async data arrives), with no user input
+    // in between, and a stray Enter or click fires whatever it landed on.
+    const option = flat()[next]
+    if (!option || option.disabled === true) return
     setFocusedAction(undefined)
     setStore("selected", next)
-    const option = selected()
-    if (option) {
-      selection = option
-      resetSelection = !preserve
-    }
-    if (option) props.onMove?.(option)
+    selection = option
+    resetSelection = !preserve
+    props.onMove?.(option)
     scrollToSelection(center)
   }
 
@@ -366,7 +391,7 @@ export function DialogSelect<T>(props: DialogSelectProps<T>) {
       return
     }
     const option = selected()
-    if (!option) return
+    if (!option || option.disabled === true) return
     option.onSelect?.(dialog)
     props.onSelect?.(option)
   }
@@ -663,6 +688,7 @@ export function DialogSelect<T>(props: DialogSelectProps<T>) {
                           }}
                           onMouseUp={() => {
                             if (props.locked) return
+                            if (option.disabled === true) return
                             option.onSelect?.(dialog)
                             props.onSelect?.(option)
                           }}
@@ -708,6 +734,7 @@ export function DialogSelect<T>(props: DialogSelectProps<T>) {
                               active={active()}
                               current={current()}
                               muted={actionFocused()}
+                              disabled={option.disabled}
                               gutter={option.gutter}
                             />
                           </box>
@@ -752,6 +779,7 @@ function Option(props: {
   active?: boolean
   current?: boolean
   muted?: boolean
+  disabled?: boolean
   footer?: JSX.Element | string
   titleWidth?: number
   truncateTitle?: boolean | "left"
@@ -761,6 +789,7 @@ function Option(props: {
   const { theme } = useTheme()
   const fg = selectedForeground(theme)
   const text = createMemo(() => {
+    if (props.disabled) return theme.textMuted
     if (props.active && !props.muted) return fg
     if (props.muted && (props.active || props.current)) return theme.textMuted
     if (props.current) return theme.primary
@@ -782,7 +811,7 @@ function Option(props: {
       <text
         flexGrow={1}
         fg={text()}
-        attributes={props.active && !props.muted ? TextAttributes.BOLD : undefined}
+        attributes={props.active && !props.muted && !props.disabled ? TextAttributes.BOLD : undefined}
         overflow="hidden"
         wrapMode="none"
         paddingLeft={3}