diff --git a/justfile b/justfile
index 8d0c66c..6c1fd4f 100644
--- a/justfile
+++ b/justfile
@@ -222,6 +222,15 @@ _instantiate_packages $system +$attrpaths:
             xe -j0 -s 'NIXPKGS_ALLOW_UNFREE=1 nix-instantiate . -A "$1" --system "$system" '"${_JUST_NIX_INSTANTIATE_ARGS:-}"''
     fi
 
+[no-cd]
+profile *args:
+    #!/usr/bin/env -S bash -euo pipefail
+    declare -a args=("$@")
+    if [[ "${#args[@]}" -eq 0 ]]; then
+        args=(. -A "$(just _a_package)")
+    fi
+    set -x
+    NIX_SHOW_STATS=1 NIX_COUNT_CALLS=1 nix-instantiate "${args[@]}"
 
 # _JUST_NIX_BUILD_ARGS='--check'
 # _JUST_NIX_BUILD_ARGS='-j0 --builders "@/etc/nix/machines; ssh://pederbs@heid.idi.ntnu.no x86_64-linux - 24 5 big-parallel"'
@@ -477,8 +486,8 @@ bump-here *packages:
     printf "%s.src\n" "${packages[@]}" | xargs just __build_packages "$system" results-src-new # TODO: unpack?
     just __build_packages "$system" results "${packages[@]}"
     # TODO: filter non-existing tests:
-    printf "%s.tests\n" "${packages[@]}" |  env _JUST_NIX_BUILD_ARGS="-j1" xargs just __build_packages "$system" results-tests
-    printf "HEAD^%s " $(seq 0 $(($#-1))) | xe $GIT show
+    printf "%s.tests\n" "${packages[@]}" | env _JUST_NIX_BUILD_ARGS="-j1" xargs just __build_packages "$system" results-tests
+    printf "HEAD^%s " $(seq 0 $(( "${#packages[@]}" - 1 ))) | xe $GIT show
     fd . -l results results-tests --max-depth 1
     # test -L result && fd . result --type x --color=always | tee update-executables.txt
     # $GIT show --name-only --pretty="" | xe statix fix
@@ -486,6 +495,8 @@ bump-here *packages:
     printf "\n"
     printf "delta results-src-{old,new}/%s.src/.\n" "${packages[@]}"
     printf "\n"
+    printf > delta-cmds.sh "echo no; exit 1\n"
+    printf >>delta-cmds.sh "delta results-src-{old,new}/%s.src/.\n" "${packages[@]}"
 
 fix *packages:
     #!/usr/bin/env -S bash -euo pipefail
@@ -886,47 +897,78 @@ open-package-urls $package=`just _a_package`:
     urls+=("https://search.nixos.org/packages?channel=unstable&query=${fpkg}")
     printf "%s\n" "" "${urls[@]}" | fzf --reverse --multi | { grep . ||:; } | xe xdg-open
 
-enqueue-nixpkgs-review $pr=`just _a_pr`:
+enqueue-nixpkgs-review *$prs:
     #!/usr/bin/env -S bash -euo pipefail
     if ! command -v pueue >/dev/null || ! pueue status >&/dev/null; then
         echo >&2 "ERROR: pueue not available!"
         exit 1
     fi
+
+    declare -a prs=("$@")
+    if [[ "${#prs[@]}" -eq 0 ]]; then
+        readarray -td $'\n' prs < <( just _some_prs )
+        [[ "${#prs[@]}" -ne 0 ]]
+    fi
     declare -a all_systems=( x86_64-linux aarch64-linux aarch64-darwin x86_64-darwin )
     declare -a systems=()
     readarray -td $'\n' systems < <( printf "%s\n" "${all_systems[@]}" | fzf --sync --layout=reverse --multi )
     declare -a all_configs=(
         ""
+        "allowInsecurePredicate = x: true;"
         "cudaSupport = true;"
         "rocmSupport = true;"
-        "allowInsecurePredicate = x: true;"
-        # "allowUnfree = true;" # default
+        # "allowUnfree = true;" # default in nixpkgs-review
         "allowUnfree = false;"
         "allowBroken = true;"
         # "allowUnsupportedSystem = true;"
     )
     declare -a configs=()
     readarray -td $'\n' "configs" < <( printf "%s\n" "${all_configs[@]}" | fzf --sync --layout=reverse --multi )
-    declare -a nixpkgs_review_args=(
-        pr "$pr"
-        --no-shell
-        --post-result
-        --systems "${systems[*]}"
-        --extra-nixpkgs-config "{ ${configs[*]} }"
-    )
-    # TODO: --checkout commit
-    # TODO: --eval local
     cd master
-    echo + pueue add nixpkgs-review "${nixpkgs_review_args[@]}"
-    if gum confirm; then
-        pueue add --escape nixpkgs-review "${nixpkgs_review_args[@]}"
-    fi
+    gum confirm
+    for pr in $prs; do
+        declare -a nixpkgs_review_args=(
+            pr "$pr"
+            --no-shell
+            --post-result
+            --systems "${systems[*]}"
+            --extra-nixpkgs-config "{ ${configs[*]} }"
+        )
+        # TODO: --checkout commit
+        # TODO: --eval local
+        #echo + pueue add nixpkgs-review "${nixpkgs_review_args[@]}"
+        (set -x
+            pueue add --escape nixpkgs-review "${nixpkgs_review_args[@]}"
+        )
+    done
 
 #  === internal helpers ===
 
-# TODO: prefer using a packages.json in the invocationdir if it exists
-# TODO: add an alternative recipie that makes it for the invocationdir worktree
-# TODO: add a recipie that allows you to determine the rootdir of the invocationdir worktree
+[no-cd]
+mk-packages-json $fname="packages.json" $rootdir=`cd "$invokedir"; git rev-parse --show-toplevel` $outpaths=`gum confirm "Eval outpaths?" --default=no && echo true || echo false`:
+    #!/usr/bin/env -S bash -euo pipefail
+    extra_args=()
+    if [[ -n "$outpaths" && "$outpaths" != false ]]; then
+        extra_args+=(--drv-path --out-path)
+    fi
+    # keeping this in ram requires 220mb extra memory
+    packages_json="$(
+        set -x
+        time nix-env </dev/null \
+            --extra-experimental-features no-url-literals \
+            --option system "$(just _this_system)" \
+            -f "$rootdir" \
+            -qaP \
+            --json \
+            --meta \
+            "${extra_args[@]}" \
+            --show-trace \
+            --no-allow-import-from-derivation \
+            --arg config '{ allowAliases = false; }' \
+            | sd -F "\"$(realpath "$rootdir")/" "\"./"
+    )"
+    cat <<<"$packages_json" >"$fname"
+
 _packages_json:
     #!/usr/bin/env -S bash -euo pipefail
     echo| { # don't swallow stdin, TODO: can i do this with exec?
@@ -937,17 +979,8 @@ _packages_json:
             if ! $GIT -C master/ diff HEAD --exit-code --quiet 1>&2; then
                 echo >&2 "ERROR: $(realpath master) is dirty!"
             fi
-            git -C master/ pull upstream master 1>&2
-            time nix-env > packages.json \
-                --extra-experimental-features no-url-literals \
-                --option system "$(just _this_system)" \
-                -f ./master \
-                -qaP \
-                --json \
-                --meta \
-                --show-trace \
-                --no-allow-import-from-derivation \
-                --arg config '{ allowAliases = false; }'
+            git -C master/ pull upstream master --rebase --autostash 1>&2
+            just mk-packages-json "packages.json" "./master" false
         fi
     }