diff --git a/scripts/release-linux-pack.mjs b/scripts/release-linux-pack.mjs
index 762ce09..0de1d63 100644
--- a/scripts/release-linux-pack.mjs
+++ b/scripts/release-linux-pack.mjs
@@ -34,11 +34,16 @@ function normalizeLinuxReleaseNames() {
   for (const name of fs.readdirSync(releaseDir)) {
     if (!name.includes('x86_64')) continue;
     const from = path.join(releaseDir, name);
-    const to = path.join(releaseDir, name.replaceAll('x86_64', 'x64'));
-    if (from !== to && !fs.existsSync(to)) {
-      fs.renameSync(from, to);
-      console.log(`[pack:linux] renamed ${name} -> ${path.basename(to)}`);
+    const toName = name.replaceAll('x86_64', 'x64');
+    const to = path.join(releaseDir, toName);
+    if (from === to) continue;
+    // Always replace stale x64 — otherwise feed points at an old AppImage.
+    if (fs.existsSync(to)) {
+      fs.rmSync(to, { force: true });
+      console.log(`[pack:linux] removed stale ${toName}`);
     }
+    fs.renameSync(from, to);
+    console.log(`[pack:linux] renamed ${name} -> ${toName}`);
   }
 
   for (const ymlName of fs.readdirSync(releaseDir)) {
diff --git a/scripts/ttrpg-release/prepare-release.ps1 b/scripts/ttrpg-release/prepare-release.ps1
index 80a9a30..2f7af9c 100644
--- a/scripts/ttrpg-release/prepare-release.ps1
+++ b/scripts/ttrpg-release/prepare-release.ps1
@@ -367,20 +367,37 @@ function Copy-ReleaseArtifacts {
 
   $copied = 0
   foreach ($name in ($names | Sort-Object)) {
+    # Always publish Linux AppImage under feed/site name (x64), never leave x86_64 alias.
+    if ($name -match 'x86_64' -and $name -match '\.AppImage$') {
+      $canonical = $name -replace 'x86_64', 'x64'
+      if ($names.Contains($canonical)) {
+        continue
+      }
+      $name = $canonical
+    }
+
     $src = Join-Path $BuildReleaseDir $name
+    $destName = $name
     if (-not (Test-Path -LiteralPath $src)) {
       if ($name -match 'x64' -and $name -notmatch 'x86_64') {
         $alt = $name -replace 'x64', 'x86_64'
-        $src = Join-Path $BuildReleaseDir $alt
+        $altPath = Join-Path $BuildReleaseDir $alt
+        if (Test-Path -LiteralPath $altPath) {
+          $src = $altPath
+        }
       }
     }
     if (-not (Test-Path -LiteralPath $src)) {
       Write-Host "  [--] skip (not built): $name" -ForegroundColor Yellow
       continue
     }
-    $dest = Join-Path $TargetDir ([System.IO.Path]::GetFileName($src))
+    $dest = Join-Path $TargetDir $destName
     Copy-Item -LiteralPath $src -Destination $dest -Force
-    Write-Ok "copied $([System.IO.Path]::GetFileName($src))"
+    if ([System.IO.Path]::GetFileName($src) -ne $destName) {
+      Write-Ok "copied $([System.IO.Path]::GetFileName($src)) -> $destName"
+    } else {
+      Write-Ok "copied $destName"
+    }
     $copied += 1
   }
 
diff --git a/scripts/ttrpg-release/publish.ps1 b/scripts/ttrpg-release/publish.ps1
index b867a72..3e32286 100644
--- a/scripts/ttrpg-release/publish.ps1
+++ b/scripts/ttrpg-release/publish.ps1
@@ -102,12 +102,36 @@ function Resolve-ReleaseFile([string]$name) {
   return $null
 }
 
-function Add-FileToUploadSet {
+# electron-builder may leave TTRPGPlayer-x86_64.AppImage while yml/site expect x64.
+# Prefer the newer x86_64 build and force the feed name before upload.
+function Normalize-LinuxAppImageNames {
+  $imgs = Get-ChildItem -LiteralPath $ReleaseDir -Filter 'TTRPGPlayer-*.AppImage' -File -ErrorAction SilentlyContinue
+  foreach ($img in $imgs) {
+    if ($img.Name -notmatch 'x86_64') { continue }
+    $toName = $img.Name -replace 'x86_64', 'x64'
+    $toPath = Join-Path $ReleaseDir $toName
+    if (Test-Path -LiteralPath $toPath) {
+      Remove-Item -LiteralPath $toPath -Force
+      Write-Warn "removed stale $toName (replaced by $($img.Name))"
+    }
+    Rename-Item -LiteralPath $img.FullName -NewName $toName
+    Write-Ok "normalized $($img.Name) -> $toName"
+  }
+}
+
+function Add-Upload {
   param(
-    [System.Collections.Generic.HashSet[string]]$set,
+    [System.Collections.Generic.Dictionary[string, string]]$map,
+    [string]$remoteName,
     [System.IO.FileInfo]$file
   )
-  [void]$set.Add($file.FullName)
+  if ($map.ContainsKey($remoteName)) {
+    $prev = $map[$remoteName]
+    if (-not $prev.Equals($file.FullName, [StringComparison]::OrdinalIgnoreCase)) {
+      Write-Warn "upload name collision for $remoteName: keeping $($file.Name)"
+    }
+  }
+  $map[$remoteName] = $file.FullName
 }
 
 Write-Title 'TTRPG Release Publisher'
@@ -129,7 +153,8 @@ if (-not (Test-Path -LiteralPath $sshKey)) {
 
 $errors = [System.Collections.Generic.List[string]]::new()
 $warnings = [System.Collections.Generic.List[string]]::new()
-$uploadFiles = [System.Collections.Generic.HashSet[string]]::new([StringComparer]::OrdinalIgnoreCase)
+# remote file name -> local full path (scp must use the feed/site name, not disk alias)
+$uploadMap = [System.Collections.Generic.Dictionary[string, string]]::new([StringComparer]::OrdinalIgnoreCase)
 
 Write-Title 'Windows (required)'
 $winYml = Join-Path $ReleaseDir 'latest.yml'
@@ -137,14 +162,14 @@ if (-not (Test-Path -LiteralPath $winYml)) {
   $errors.Add('Missing latest.yml')
 } else {
   Write-Ok 'latest.yml'
-  [void]$uploadFiles.Add($winYml)
+  Add-Upload $uploadMap ([System.IO.Path]::GetFileName($winYml)) (Get-Item -LiteralPath $winYml)
   foreach ($name in (Get-YmlReferencedFiles $winYml)) {
     $file = Resolve-ReleaseFile $name
     if ($null -eq $file) {
       $errors.Add("Windows: missing file $name (from latest.yml)")
     } else {
       Write-Ok $file.Name
-      Add-FileToUploadSet $uploadFiles $file
+      Add-Upload $uploadMap $name $file
     }
   }
   $blockmap = Resolve-ReleaseFile 'TTRPGPlayer-Setup.exe.blockmap'
@@ -152,29 +177,30 @@ if (-not (Test-Path -LiteralPath $winYml)) {
     $warnings.Add('Missing TTRPGPlayer-Setup.exe.blockmap (recommended)')
   } else {
     Write-Ok $blockmap.Name
-    Add-FileToUploadSet $uploadFiles $blockmap
+    Add-Upload $uploadMap 'TTRPGPlayer-Setup.exe.blockmap' $blockmap
   }
 }
 
 Write-Title 'Linux (if latest-linux*.yml present)'
+Normalize-LinuxAppImageNames
 $linuxYmls = Get-ChildItem -LiteralPath $ReleaseDir -Filter 'latest-linux*.yml' -File -ErrorAction SilentlyContinue
 if ($linuxYmls.Count -eq 0) {
   Write-Warn 'No latest-linux*.yml - skipping Linux'
 } else {
   foreach ($yml in $linuxYmls) {
     Write-Ok $yml.Name
-    [void]$uploadFiles.Add($yml.FullName)
+    Add-Upload $uploadMap $yml.Name $yml
     foreach ($name in (Get-YmlReferencedFiles $yml.FullName)) {
       $file = Resolve-ReleaseFile $name
       if ($null -eq $file) {
         $errors.Add("Linux ($($yml.Name)): missing file $name")
       } else {
         if ($file.Name -ne $name) {
-          Write-Warn "$($yml.Name): yml expects $name, disk has $($file.Name) - will upload $($file.Name)"
+          Write-Warn "$($yml.Name): yml expects $name, disk has $($file.Name) - uploading as $name"
         } else {
           Write-Ok "$($yml.Name) -> $name"
         }
-        Add-FileToUploadSet $uploadFiles $file
+        Add-Upload $uploadMap $name $file
       }
     }
   }
@@ -188,7 +214,7 @@ if ($SkipMac) {
   Write-Warn 'No latest-mac.yml - skipping macOS'
 } else {
   Write-Ok 'latest-mac.yml'
-  [void]$uploadFiles.Add($macYml)
+  Add-Upload $uploadMap ([System.IO.Path]::GetFileName($macYml)) (Get-Item -LiteralPath $macYml)
 
   $macVersion = Get-YmlVersion $macYml
   $winYml = Join-Path $ReleaseDir 'latest.yml'
@@ -216,7 +242,7 @@ if ($SkipMac) {
       )
     } else {
       Write-Ok "primary update: $($primaryFile.Name)"
-      Add-FileToUploadSet $uploadFiles $primaryFile
+      Add-Upload $uploadMap $primaryName $primaryFile
     }
   }
 
@@ -226,7 +252,7 @@ if ($SkipMac) {
       $warnings.Add("macOS: optional file missing (not uploaded): $name")
     } else {
       Write-Ok "optional: $($file.Name)"
-      Add-FileToUploadSet $uploadFiles $file
+      Add-Upload $uploadMap $name $file
     }
   }
 }
@@ -245,9 +271,14 @@ if ($errors.Count -gt 0) {
 }
 
 Write-Host ''
-Write-Host "Files to upload: $($uploadFiles.Count)" -ForegroundColor Green
-foreach ($path in ($uploadFiles | Sort-Object)) {
-  Write-Host "  - $([System.IO.Path]::GetFileName($path))"
+Write-Host "Files to upload: $($uploadMap.Count)" -ForegroundColor Green
+foreach ($remoteName in ($uploadMap.Keys | Sort-Object)) {
+  $localName = [System.IO.Path]::GetFileName($uploadMap[$remoteName])
+  if ($localName -eq $remoteName) {
+    Write-Host "  - $remoteName"
+  } else {
+    Write-Host "  - $remoteName  (from $localName)"
+  }
 }
 
 if ($CheckOnly) {
@@ -260,12 +291,12 @@ Write-Title 'Upload'
 Write-Host "Target: ${sshTarget}:${remoteDir}"
 Write-Host "Feed: $feedUrl"
 
-foreach ($path in ($uploadFiles | Sort-Object)) {
-  $name = [System.IO.Path]::GetFileName($path)
-  Write-Host "  -> $name"
-  & scp -i $sshKey -q $path "${sshTarget}:${remoteDir}/"
+foreach ($remoteName in ($uploadMap.Keys | Sort-Object)) {
+  $localPath = $uploadMap[$remoteName]
+  Write-Host "  -> $remoteName"
+  & scp -i $sshKey -q $localPath "${sshTarget}:${remoteDir}/$remoteName"
   if ($LASTEXITCODE -ne 0) {
-    throw "scp failed for $name (exit $LASTEXITCODE)"
+    throw "scp failed for $remoteName (exit $LASTEXITCODE)"
   }
 }