diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,5 +1,11 @@
 # Version history of koji-tool
 
+## 1.1 (2023-07-22)
+- tasks: now shows children of 'build' task
+- install: correctly handle arch for installed packages (#4)
+- install: support dnf5 and dnf-3 (default dnf)
+- use simple-prompt
+
 ## 1.0.1 (2023-05-08)
 - 'install' now supports multiple arch options (#4)
 - 'find': interpret small number as a limit (default still 10 results)
diff --git a/LICENSE b/LICENSE
--- a/LICENSE
+++ b/LICENSE
@@ -1,4 +1,4 @@
-Copyright (c) 2021, Jens Petersen
+Copyright (c) 2021-2023, Jens Petersen
 
 All rights reserved.
 
diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@
 and check buildlog sizes.
 
 [Koji](https://pagure.io/koji/) is the RPM package buildsystem used by
-Fedora Linux, CentOS, and some other projects.
+Fedora Linux, CentOS Stream, RHEL, and some other projects.
 
 By default Fedora Koji is used.
 
@@ -23,7 +23,7 @@
 ## Commands
 ```shellsession
 $ koji-tool --version
-1.0.1
+1.1
 $ koji-tool --help
 Query and track Koji tasks, and install rpms from Koji.
 
@@ -272,7 +272,8 @@
 $ koji-tool install --help
 Usage: koji-tool install [-n|--dry-run] [-D|--debug] [-y|--yes] [-H|--hub HUB]
                          [-P|--packages-url URL] [-l|--list] [-L|--latest]
-                         [-t|--check-remote-time] [--rpm | --rpm-ostree | --dnf]
+                         [-t|--check-remote-time]
+                         [--rpm | --rpm-ostree | --dnf5 | --dnf3]
                          [-a|--arch ARCH]
                          [(-N|--no-reinstall) | (-S|--skip-existing)]
                          [-b|--prefix SUBPKGPREFIX]
@@ -295,7 +296,8 @@
   -t,--check-remote-time   Check remote rpm timestamps
   --rpm                    Use rpm instead of dnf
   --rpm-ostree             Use rpm-ostree instead of dnf
-  --dnf                    Use dnf to install [default unless ostree]
+  --dnf5                   Use dnf5 to install
+  --dnf3                   Use dnf-3 to install [default dnf unless ostree]
   -a,--arch ARCH           Task arch
   -N,--no-reinstall        Do not reinstall existing NVRs
   -S,--skip-existing       Ignore already installed subpackages (implies
@@ -387,5 +389,5 @@
 koji-tool is distributed under a BSD license.
 
 Bug reports and contributions are welcomed:
-please propose suggestions and changes at:
+please report issues and suggestions at:
 https://github.com/juhp/koji-tool/
diff --git a/TODO b/TODO
--- a/TODO
+++ b/TODO
@@ -35,6 +35,7 @@
 - different hubs put builds in different locations
 - html output
 - --rootlog
+- maybe smaller number as buildid and larger as taskid
 
 ## builds
 - --show-tags
diff --git a/koji-tool.cabal b/koji-tool.cabal
--- a/koji-tool.cabal
+++ b/koji-tool.cabal
@@ -1,5 +1,5 @@
 name:                koji-tool
-version:             1.0.1
+version:             1.1
 synopsis:            Koji CLI tool for querying tasks and installing builds
 description:
         koji-tool is a CLI interface to Koji with commands to query
@@ -25,6 +25,7 @@
                      || == 9.0.2
                      || == 9.2.7
                      || == 9.4.5
+                     || == 9.6.2
 
 source-repository head
   type:                git
@@ -58,6 +59,7 @@
                        rpm-nvr >= 0.1.2,
                        simple-cmd >= 0.2.2,
                        simple-cmd-args >= 0.1.8,
+                       simple-prompt >=0.2,
                        text,
                        time >= 1.9.1,
                        utf8-string,
diff --git a/src/Install.hs b/src/Install.hs
--- a/src/Install.hs
+++ b/src/Install.hs
@@ -26,6 +26,7 @@
 import qualified Distribution.Koji.API as Koji
 import Network.HTTP.Directory (httpFileSize', httpLastModified', (+/+))
 import SimpleCmd
+import SimplePrompt (yesNoDefault)
 import System.Directory
 import System.FilePath
 import System.FilePath.Glob
@@ -88,11 +89,12 @@
 data Request = ReqName | ReqNV | ReqNVR
   deriving Eq
 
-data PkgMgr = DNF | RPM | OSTREE
+data PkgMgr = DNF3 | DNF5 | RPM | OSTREE
   deriving Eq
 
 data ExistingStrategy = ExistingNoReinstall | ExistingSkip
 
+-- FIXME autodetect NVR, NV, etc
 -- FIXME support buildid
 -- FIXME specify tag or task
 -- FIXME support --latest
@@ -295,12 +297,14 @@
   where
     installExists :: NVRA -> IO (Maybe (Existence, NVRA))
     installExists nvra = do
-      minstalled <- cmdMaybe "rpm" ["-q", rpmName nvra]
+      -- FIXME this will fail for noarch changes
+      -- FIXME check kernel
+      minstalled <- cmdMaybe "rpm" ["-q", rpmName nvra <.> rpmArch nvra]
       let existence =
             case minstalled of
               Nothing -> NotInstalled
               Just installed ->
-                if installed == showNVRA nvra
+                if showNVRA nvra `elem` lines installed
                 then ExistingNVR
                 else ChangedNVR
       return $
@@ -393,16 +397,7 @@
 prompt yes str = do
   if yes == Yes
     then return True
-    else do
-    putStr $ str ++ " [Y/n]: "
-    inp <- trim <$> getLine
-    case lower inp of
-      "" -> return True
-      "y" -> return True
-      "yes" -> return True
-      "n" -> return False
-      "no" -> return False
-      _ -> prompt yes str
+    else yesNoDefault True str
 
 rpmPrompt :: Yes -> (Existence,NVRA) -> IO (Maybe (Existence,NVRA))
 rpmPrompt yes (exist,nvra) = do
@@ -508,13 +503,18 @@
       unless (null dirpkgs) $ do
       mgr <-
         case mmgr of
+          Just m -> return m
           Nothing -> do
             mostree <- findExecutable "rpm-ostree"
-            return $ if isJust mostree then OSTREE else DNF
-          Just m -> return m
+            case mostree of
+              Just _ -> return OSTREE
+              Nothing -> do
+                mdnf5 <- findExecutable "dnf5"
+                return $ maybe DNF3 (const DNF5) mdnf5
       let pkgmgr =
             case mgr of
-              DNF -> "dnf"
+              DNF3 -> "dnf-3"
+              DNF5 -> "dnf5"
               RPM -> "rpm"
               OSTREE -> "rpm-ostree"
           com =
@@ -529,7 +529,7 @@
           (case mgr of
             OSTREE -> cmd_
             _ -> sudo_) pkgmgr $
-            com ++ map showRpmFile dirpkgs ++ ["--assumeyes" | yes == Yes && mgr == DNF]
+            com ++ map showRpmFile dirpkgs ++ ["--assumeyes" | yes == Yes && mgr `elem` [DNF3,DNF5]]
 
     installTypes :: [(FilePath,[(Existence,NVRA)])]
                  -> ([(FilePath,NVRA)],[(FilePath,NVRA)])
@@ -545,14 +545,16 @@
     reinstallCommand :: PkgMgr -> [String]
     reinstallCommand mgr =
       case mgr of
-        DNF -> ["reinstall"]
+        DNF3 -> ["reinstall"]
+        DNF5 -> ["reinstall"]
         RPM -> ["-Uvh","--replacepkgs"]
         OSTREE -> ["install"]
 
     installCommand :: PkgMgr -> [String]
     installCommand mgr =
       case mgr of
-        DNF -> ["localinstall"]
+        DNF3 -> ["localinstall"]
+        DNF5 -> ["install"]
         RPM -> ["-ivh"]
         OSTREE -> ["install"]
 
diff --git a/src/Main.hs b/src/Main.hs
--- a/src/Main.hs
+++ b/src/Main.hs
@@ -157,7 +157,8 @@
     pkgMgrOpt =
       flagLongWith' RPM "rpm" "Use rpm instead of dnf" <|>
       flagLongWith' OSTREE "rpm-ostree" "Use rpm-ostree instead of dnf" <|>
-      flagLongWith' DNF "dnf" "Use dnf to install [default unless ostree]"
+      flagLongWith' DNF5 "dnf5" "Use dnf5 to install" <|>
+      flagLongWith' DNF3 "dnf3" "Use dnf-3 to install [default dnf unless ostree]"
 
     existingOpt :: Parser ExistingStrategy
     existingOpt =
diff --git a/src/Tasks.hs b/src/Tasks.hs
--- a/src/Tasks.hs
+++ b/src/Tasks.hs
@@ -61,7 +61,7 @@
 data TaskResult =
   TaskResult {taskPackage :: Either String NVR,
               taskArch :: String,
-              _taskMethod :: String,
+              taskMethod :: String,
               _taskState :: TaskState,
               _mtaskParent :: Maybe Int,
               taskId :: Int,
@@ -126,7 +126,11 @@
         putStrLn ""
         -- FIX for parent/build method show children (like we do with taskid)
         (mapM_ putStrLn . formatTaskResult hub mtime tz) task
-        buildlogSize qDebug tail' hwinfo mgrep hub task
+        if taskMethod task == "build"
+          then do
+          getTasks tz hub queryopts (Parent $ taskId task) >>=
+            mapM_ (printTask detailed tz) . mapMaybe maybeTaskResult
+          else buildlogSize qDebug tail' hwinfo mgrep hub task
         else do
         (putStrLn . compactTaskResult hub tz) task
         when (tail' || hwinfo || isJust mgrep) $