Using emacsWithPackagesFromUsePackage error list index 0 is out of bounds

[margaretjoanmiller]

error:
       … while evaluating the attribute 'activationScript' of the derivation 'nixos-system-0x4d6165-x360-nixos-23.05.3976.32dcb45f66c0'

       at /nix/store/cmwzh97fnsj3g2gal9l9z1k9nn1dqg7l-nixos-23.05/nixos/pkgs/stdenv/generic/make-derivation.nix:303:7:

          302|     // (lib.optionalAttrs (attrs ? name || (attrs ? pname && attrs ? version)) {
          303|       name =
             |       ^
          304|         let

       … while evaluating the attribute 'system.activationScripts.script'

       at /nix/var/nix/profiles/per-user/root/channels/nixos/nixos/modules/system/activation/activation-script.nix:137:9:

          136|       apply = set: set // {
          137|         script = systemActivationScript set false;
             |         ^
          138|       };

       … while evaluating call site

       at /nix/var/nix/profiles/per-user/root/channels/nixos/nixos/modules/system/activation/activation-script.nix:137:18:

          136|       apply = set: set // {
          137|         script = systemActivationScript set false;
             |                  ^
          138|       };

       … while calling 'systemActivationScript'

       at /nix/var/nix/profiles/per-user/root/channels/nixos/nixos/modules/system/activation/activation-script.nix:20:33:

           19|
           20|   systemActivationScript = set: onlyDry: let
             |                                 ^
           21|     set' = mapAttrs (_: v: if isString v then (noDepEntry v) // { supportsDryActivation = false; } else v) set;

       … while evaluating call site

       at /nix/var/nix/profiles/per-user/root/channels/nixos/nixos/modules/system/activation/activation-script.nix:49:9:

           48|
           49|       ${textClosureMap id (withDrySnippets) (attrNames withDrySnippets)}
             |         ^
           50|

       … while calling 'textClosureMap'

       at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/strings-with-deps.nix:75:35:

           74|
           75|   textClosureMap = f: predefined: names:
             |                                   ^
           76|     concatStringsSep "\n" (map f (textClosureList predefined names));

       … while evaluating call site

       at «none»:0: (source not available)

       … while calling 'id'

       at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/trivial.nix:14:5:

           13|     # The value to return
           14|     x: x;
             |     ^
           15|

       … while evaluating the attribute 'text'

       at /nix/var/nix/profiles/per-user/root/channels/nixos/nixos/modules/system/activation/activation-script.nix:9:5:

            8|   addAttributeName = mapAttrs (a: v: v // {
            9|     text = ''
             |     ^
           10|       #### Activation script snippet ${a}:

       … while evaluating call site

       at «none»:0: (source not available)

       … while calling 'g'

       at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/attrsets.nix:595:19:

          594|           g =
          595|             name: value:
             |                   ^
          596|             if isAttrs value && cond value

       … while evaluating call site

       at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/attrsets.nix:598:20:

          597|               then recurse (path ++ [name]) value
          598|               else f (path ++ [name]) value;
             |                    ^
          599|         in mapAttrs g;

       … while calling anonymous lambda

       at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:248:72:

          247|           # For definitions that have an associated option
          248|           declaredConfig = mapAttrsRecursiveCond (v: ! isOption v) (_: v: v.value) options;
             |                                                                        ^
          249|

       … while evaluating the attribute 'value'

       at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:759:9:

          758|     in warnDeprecation opt //
          759|       { value = builtins.addErrorContext "while evaluating the option `${showOption loc}':" value;             |         ^
          760|         inherit (res.defsFinal') highestPrio;

       … while evaluating the option `system.activationScripts.etc.text':

       … while evaluating the attribute 'mergedValue'

       at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:794:5:

          793|     # Type-check the remaining definitions, and merge them. Or throw if no definitions.
          794|     mergedValue =
             |     ^
          795|       if isDefined then

       … while evaluating the attribute 'values'

       at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:788:9:

          787|       in {
          788|         values = defs''';
             |         ^
          789|         inherit (defs'') highestPrio;

       … while evaluating the attribute 'values'

       at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:887:7:

          886|     in {
          887|       values = concatMap (def: if getPrio def == highestPrio then [(strip def)] else []) defs;
             |       ^
          888|       inherit highestPrio;

       … while evaluating call site

       at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:774:17:

          773|         # Process mkMerge and mkIf properties.
          774|         defs' = concatMap (m:
             |                 ^
          775|           map (value: { inherit (m) file; inherit value; }) (builtins.addErrorContext "while evaluating definitions from `${m.file}':" (dischargeProperties m.value))

       … while calling anonymous lambda

       at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:774:28:

          773|         # Process mkMerge and mkIf properties.
          774|         defs' = concatMap (m:
             |                            ^
          775|           map (value: { inherit (m) file; inherit value; }) (builtins.addErrorContext "while evaluating definitions from `${m.file}':" (dischargeProperties m.value))

       … while evaluating definitions from `/nix/var/nix/profiles/per-user/root/channels/nixos/nixos/modules/system/etc/etc-activation.nix':

       … while evaluating call site

       at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:775:137:

          774|         defs' = concatMap (m:
          775|           map (value: { inherit (m) file; inherit value; }) (builtins.addErrorContext "while evaluating definitions from `${m.file}':" (dischargeProperties m.value))
             |                                                                                                                                         ^
          776|         ) defs;

       … while calling 'dischargeProperties'

       at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:846:25:

          845|   */
          846|   dischargeProperties = def:
             |                         ^
          847|     if def._type or "" == "merge" then

       … while evaluating the attribute 'value'

       at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:599:44:

          598|       defnsByName' = byName "config" (module: value:
          599|           [{ inherit (module) file; inherit value; }]
             |                                            ^
          600|         ) configs;

       … while evaluating call site

       at «none»:0: (source not available)

       … while calling anonymous lambda

       at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/attrsets.nix:812:24:

          811|     let f = attrPath:
          812|       zipAttrsWith (n: values:
             |                        ^
          813|         let here = attrPath ++ [n]; in

       … while evaluating call site

       at «none»:0: (source not available)

       … while calling anonymous lambda

       at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/types.nix:563:29:

          562|       merge = loc: defs:
          563|         zipAttrsWith (name: defs:
             |                             ^
          564|           let merged = mergeDefinitions (loc ++ [name]) elemType defs;

       … while evaluating the attribute 'optionalValue.value'

       at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:806:5:

          805|
          806|     optionalValue =
             |     ^
          807|       if isDefined then { value = mergedValue; }

       … while evaluating the attribute 'values'

       at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:788:9:

          787|       in {
          788|         values = defs''';
             |         ^
          789|         inherit (defs'') highestPrio;

       … while evaluating the attribute 'values'

       at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:887:7:

          886|     in {
          887|       values = concatMap (def: if getPrio def == highestPrio then [(strip def)] else []) defs;
             |       ^
          888|       inherit highestPrio;

       … while evaluating call site

       at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:774:17:

          773|         # Process mkMerge and mkIf properties.
          774|         defs' = concatMap (m:
             |                 ^
          775|           map (value: { inherit (m) file; inherit value; }) (builtins.addErrorContext "while evaluating definitions from `${m.file}':" (dischargeProperties m.value))

       … while calling anonymous lambda

       at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:774:28:

          773|         # Process mkMerge and mkIf properties.
          774|         defs' = concatMap (m:
             |                            ^
          775|           map (value: { inherit (m) file; inherit value; }) (builtins.addErrorContext "while evaluating definitions from `${m.file}':" (dischargeProperties m.value))

       … while evaluating definitions from `/nix/var/nix/profiles/per-user/root/channels/nixos/nixos/modules/system/etc/etc.nix':

       … while evaluating call site

       at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:775:137:

          774|         defs' = concatMap (m:
          775|           map (value: { inherit (m) file; inherit value; }) (builtins.addErrorContext "while evaluating definitions from `${m.file}':" (dischargeProperties m.value))
             |                                                                                                                                         ^
          776|         ) defs;

       … while calling 'dischargeProperties'

       at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:846:25:

          845|   */
          846|   dischargeProperties = def:
             |                         ^
          847|     if def._type or "" == "merge" then

       … while evaluating the attribute 'value'

       at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/types.nix:569:58:

          568|         # Push down position info.
          569|         (map (def: mapAttrs (n: v: { inherit (def) file; value = v; }) def.value) defs);
             |                                                          ^
          570|       emptyValue = { value = {}; };

       … while evaluating call site

       at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/attrsets.nix:88:39:

           87|         then value
           88|         else { ${elemAt attrPath n} = atDepth (n + 1); };
             |                                       ^
           89|     in atDepth 0;

       … while calling 'atDepth'

       at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/attrsets.nix:85:17:

           84|       len = length attrPath;
           85|       atDepth = n:
             |                 ^
           86|         if n == len

       … while evaluating the attribute 'value'

       at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:599:44:

          598|       defnsByName' = byName "config" (module: value:
          599|           [{ inherit (module) file; inherit value; }]
             |                                            ^
          600|         ) configs;

       … while evaluating the attribute 'buildCommand' of the derivation 'etc'

       at /nix/store/cmwzh97fnsj3g2gal9l9z1k9nn1dqg7l-nixos-23.05/nixos/pkgs/stdenv/generic/make-derivation.nix:303:7:

          302|     // (lib.optionalAttrs (attrs ? name || (attrs ? pname && attrs ? version)) {
          303|       name =
             |       ^
          304|         let

       … while evaluating call site

       at /nix/var/nix/profiles/per-user/root/channels/nixos/nixos/modules/system/etc/etc.nix:54:7:

           53|     mkdir -p "$out/etc"
           54|     ${concatMapStringsSep "\n" (etcEntry: escapeShellArgs [
             |       ^
           55|       "makeEtcEntry"

       … while calling 'concatMapStringsSep'

       at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/strings.nix:116:5:

          115|     # List of input strings
          116|     list: concatStringsSep sep (map f list);
             |     ^
          117|

       … while evaluating call site

       at «none»:0: (source not available)

       … while calling anonymous lambda

       at /nix/var/nix/profiles/per-user/root/channels/nixos/nixos/modules/system/etc/etc.nix:54:33:

           53|     mkdir -p "$out/etc"
           54|     ${concatMapStringsSep "\n" (etcEntry: escapeShellArgs [
             |                                 ^
           55|       "makeEtcEntry"

       … while evaluating call site

       at /nix/var/nix/profiles/per-user/root/channels/nixos/nixos/modules/system/etc/etc.nix:54:43:

           53|     mkdir -p "$out/etc"
           54|     ${concatMapStringsSep "\n" (etcEntry: escapeShellArgs [
             |                                           ^
           55|       "makeEtcEntry"

       … while calling 'concatMapStringsSep'

       at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/strings.nix:116:5:

          115|     # List of input strings
          116|     list: concatStringsSep sep (map f list);
             |     ^
          117|

       … while evaluating call site

       at «none»:0: (source not available)

       … while calling 'escapeShellArg'

       at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/strings.nix:427:20:

          426|   */
          427|   escapeShellArg = arg: "'${replaceStrings ["'"] ["'\\''"] (toString arg)}'";
             |                    ^
          428|

       … while evaluating call site

       at «none»:0: (source not available)

       … while calling 'g'

       at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/attrsets.nix:595:19:

          594|           g =
          595|             name: value:
             |                   ^
          596|             if isAttrs value && cond value

       … while evaluating call site

       at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/attrsets.nix:598:20:

          597|               then recurse (path ++ [name]) value
          598|               else f (path ++ [name]) value;
             |                    ^
          599|         in mapAttrs g;

       … while calling anonymous lambda

       at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:248:72:

          247|           # For definitions that have an associated option
          248|           declaredConfig = mapAttrsRecursiveCond (v: ! isOption v) (_: v: v.value) options;
             |                                                                        ^
          249|

       … while evaluating the attribute 'value'

       at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:759:9:

          758|     in warnDeprecation opt //
          759|       { value = builtins.addErrorContext "while evaluating the option `${showOption loc}':" value;             |         ^
          760|         inherit (res.defsFinal') highestPrio;

       … while evaluating the option `environment.etc.dbus-1.source':

       … while evaluating the attribute 'mergedValue'

       at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:794:5:

          793|     # Type-check the remaining definitions, and merge them. Or throw if no definitions.
          794|     mergedValue =
             |     ^
          795|       if isDefined then

       … while evaluating call site

       at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:796:12:

          795|       if isDefined then
          796|         if all (def: type.check def.value) defsFinal then type.merge loc defsFinal
             |            ^
          797|         else let allInvalid = filter (def: ! type.check def.value) defsFinal;

       … while calling anonymous lambda

       at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:796:17:

          795|       if isDefined then
          796|         if all (def: type.check def.value) defsFinal then type.merge loc defsFinal
             |                 ^
          797|         else let allInvalid = filter (def: ! type.check def.value) defsFinal;

       … while evaluating call site

       at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:796:22:

          795|       if isDefined then
          796|         if all (def: type.check def.value) defsFinal then type.merge loc defsFinal
             |                      ^
          797|         else let allInvalid = filter (def: ! type.check def.value) defsFinal;

       … while calling 'check'

       at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/types.nix:491:15:

          490|       descriptionClass = "noun";
          491|       check = x: isStringLike x && builtins.substring 0 1 (toString x) == "/";
             |               ^
          492|       merge = mergeEqualOption;

       … while evaluating the attribute 'serviceDirectories' of the derivation 'dbus-1'

       at /nix/store/cmwzh97fnsj3g2gal9l9z1k9nn1dqg7l-nixos-23.05/nixos/pkgs/stdenv/generic/make-derivation.nix:303:7:

          302|     // (lib.optionalAttrs (attrs ? name || (attrs ? pname && attrs ? version)) {
          303|       name =
             |       ^
          304|         let

       … while evaluating call site

       at «none»:0: (source not available)

       … while calling anonymous lambda

       at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/types.nix:509:14:

          508|       merge = loc: defs:
          509|         map (x: x.value) (filter (x: x ? value) (concatLists (imap1 (n: def:
             |              ^
          510|           imap1 (m: def':

       … while evaluating the attribute 'value'

       at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:807:27:

          806|     optionalValue =
          807|       if isDefined then { value = mergedValue; }
             |                           ^
          808|       else {};

       … while evaluating call site

       at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:796:12:

          795|       if isDefined then
          796|         if all (def: type.check def.value) defsFinal then type.merge loc defsFinal
             |            ^
          797|         else let allInvalid = filter (def: ! type.check def.value) defsFinal;

       … while calling anonymous lambda

       at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:796:17:

          795|       if isDefined then
          796|         if all (def: type.check def.value) defsFinal then type.merge loc defsFinal
             |                 ^
          797|         else let allInvalid = filter (def: ! type.check def.value) defsFinal;

       … while evaluating call site

       at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:796:22:

          795|       if isDefined then
          796|         if all (def: type.check def.value) defsFinal then type.merge loc defsFinal
             |                      ^
          797|         else let allInvalid = filter (def: ! type.check def.value) defsFinal;

       … while calling 'check'

       at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/types.nix:491:15:

          490|       descriptionClass = "noun";
          491|       check = x: isStringLike x && builtins.substring 0 1 (toString x) == "/";
             |               ^
          492|       merge = mergeEqualOption;

       … while evaluating the attribute 'passAsFile' of the derivation 'system-path'

       at /nix/store/cmwzh97fnsj3g2gal9l9z1k9nn1dqg7l-nixos-23.05/nixos/pkgs/stdenv/generic/make-derivation.nix:303:7:

          302|     // (lib.optionalAttrs (attrs ? name || (attrs ? pname && attrs ? version)) {
          303|       name =
             |       ^
          304|         let

       … while evaluating the attribute 'passAsFile'

       at /nix/store/cmwzh97fnsj3g2gal9l9z1k9nn1dqg7l-nixos-23.05/nixos/pkgs/build-support/buildenv/default.nix:77:5:

           76|     # XXX: The size is somewhat arbitrary
           77|     passAsFile = if builtins.stringLength pkgs >= 128*1024 then [ "pkgs" ] else [ ];
             |     ^
           78|   }

       … while evaluating the attribute 'deps' of the derivation 'emacs-git-with-packages-20231002.0'

       at /nix/store/cmwzh97fnsj3g2gal9l9z1k9nn1dqg7l-nixos-23.05/nixos/pkgs/stdenv/generic/make-derivation.nix:303:7:

          302|     // (lib.optionalAttrs (attrs ? name || (attrs ? pname && attrs ? version)) {
          303|       name =
             |       ^
          304|         let

       … while evaluating the attribute 'explicitRequires' of the derivation 'emacs-packages-deps'

       at /nix/store/cmwzh97fnsj3g2gal9l9z1k9nn1dqg7l-nixos-23.05/nixos/pkgs/stdenv/generic/make-derivation.nix:303:7:

          302|     // (lib.optionalAttrs (attrs ? name || (attrs ? pname && attrs ? version)) {
          303|       name =
             |       ^
          304|         let

       … while evaluating call site

       at /nix/store/cmwzh97fnsj3g2gal9l9z1k9nn1dqg7l-nixos-23.05/nixos/pkgs/build-support/emacs/wrapper.nix:46:10:

           45|     if lib.isFunction packagesFun
           46|     then packagesFun self
             |          ^
           47|     else packagesFun;

       … while calling anonymous lambda

       at /nix/store/bwcmwb5aniz4dxwax2wwknrjy9r7amla-source/elisp.nix:63:20:

           62| in
           63| emacsWithPackages (epkgs:
             |                    ^
           64|   let

       … while evaluating call site

       at /nix/store/bwcmwb5aniz4dxwax2wwknrjy9r7amla-source/elisp.nix:47:14:

           46|
           47|   packages = parse.parsePackagesFromUsePackage {
             |              ^
           48|     inherit configText isOrgModeFile alwaysTangle alwaysEnsure;

       … while calling 'parsePackagesFromUsePackage'

       at /nix/store/bwcmwb5aniz4dxwax2wwknrjy9r7amla-source/parse.nix:72:33:

           71|   # => [ "direnv" "paredit" ]
           72|   parsePackagesFromUsePackage = {
             |                                 ^
           73|     configText

       … while evaluating call site

       at /nix/store/bwcmwb5aniz4dxwax2wwknrjy9r7amla-source/parse.nix:150:7:

          149|     in
          150|       lib.flatten (map recurse (readFunction configText));
             |       ^
          151|

       … while calling 'flatten'

       at /nix/store/cmwzh97fnsj3g2gal9l9z1k9nn1dqg7l-nixos-23.05/nixos/lib/lists.nix:138:13:

          137|   */
          138|   flatten = x:
             |             ^
          139|     if isList x

       … while evaluating call site

       at /nix/store/cmwzh97fnsj3g2gal9l9z1k9nn1dqg7l-nixos-23.05/nixos/lib/lists.nix:140:10:

          139|     if isList x
          140|     then concatMap (y: flatten y) x
             |          ^
          141|     else [x];

       … while calling anonymous lambda

       at /nix/store/cmwzh97fnsj3g2gal9l9z1k9nn1dqg7l-nixos-23.05/nixos/lib/lists.nix:140:21:

          139|     if isList x
          140|     then concatMap (y: flatten y) x
             |                     ^
          141|     else [x];

       … while evaluating call site

       at /nix/store/cmwzh97fnsj3g2gal9l9z1k9nn1dqg7l-nixos-23.05/nixos/lib/lists.nix:140:24:

          139|     if isList x
          140|     then concatMap (y: flatten y) x
             |                        ^
          141|     else [x];

       … while calling 'flatten'

       at /nix/store/cmwzh97fnsj3g2gal9l9z1k9nn1dqg7l-nixos-23.05/nixos/lib/lists.nix:138:13:

          137|   */
          138|   flatten = x:
             |             ^
          139|     if isList x

       … while evaluating call site

       at /nix/store/cmwzh97fnsj3g2gal9l9z1k9nn1dqg7l-nixos-23.05/nixos/lib/lists.nix:140:10:

          139|     if isList x
          140|     then concatMap (y: flatten y) x
             |          ^
          141|     else [x];

       … while calling anonymous lambda

       at /nix/store/cmwzh97fnsj3g2gal9l9z1k9nn1dqg7l-nixos-23.05/nixos/lib/lists.nix:140:21:

          139|     if isList x
          140|     then concatMap (y: flatten y) x
             |                     ^
          141|     else [x];

       … while evaluating call site

       at /nix/store/cmwzh97fnsj3g2gal9l9z1k9nn1dqg7l-nixos-23.05/nixos/lib/lists.nix:140:24:

          139|     if isList x
          140|     then concatMap (y: flatten y) x
             |                        ^
          141|     else [x];

       … while calling 'flatten'

       at /nix/store/cmwzh97fnsj3g2gal9l9z1k9nn1dqg7l-nixos-23.05/nixos/lib/lists.nix:138:13:

          137|   */
          138|   flatten = x:
             |             ^
          139|     if isList x

       … while evaluating call site

       at /nix/store/cmwzh97fnsj3g2gal9l9z1k9nn1dqg7l-nixos-23.05/nixos/lib/lists.nix:140:10:

          139|     if isList x
          140|     then concatMap (y: flatten y) x
             |          ^
          141|     else [x];

       … while calling anonymous lambda

       at /nix/store/cmwzh97fnsj3g2gal9l9z1k9nn1dqg7l-nixos-23.05/nixos/lib/lists.nix:140:21:

          139|     if isList x
          140|     then concatMap (y: flatten y) x
             |                     ^
          141|     else [x];

       … while evaluating call site

       at /nix/store/cmwzh97fnsj3g2gal9l9z1k9nn1dqg7l-nixos-23.05/nixos/lib/lists.nix:140:24:

          139|     if isList x
          140|     then concatMap (y: flatten y) x
             |                        ^
          141|     else [x];

       … while calling 'flatten'

       at /nix/store/cmwzh97fnsj3g2gal9l9z1k9nn1dqg7l-nixos-23.05/nixos/lib/lists.nix:138:13:

          137|   */
          138|   flatten = x:
             |             ^
          139|     if isList x

       … while evaluating call site

       at /nix/store/cmwzh97fnsj3g2gal9l9z1k9nn1dqg7l-nixos-23.05/nixos/lib/lists.nix:140:10:

          139|     if isList x
          140|     then concatMap (y: flatten y) x
             |          ^
          141|     else [x];

       … while calling anonymous lambda

       at /nix/store/cmwzh97fnsj3g2gal9l9z1k9nn1dqg7l-nixos-23.05/nixos/lib/lists.nix:140:21:

          139|     if isList x
          140|     then concatMap (y: flatten y) x
             |                     ^
          141|     else [x];

       … while evaluating call site

       at /nix/store/cmwzh97fnsj3g2gal9l9z1k9nn1dqg7l-nixos-23.05/nixos/lib/lists.nix:140:24:

          139|     if isList x
          140|     then concatMap (y: flatten y) x
             |                        ^
          141|     else [x];

       … while calling 'flatten'

       at /nix/store/cmwzh97fnsj3g2gal9l9z1k9nn1dqg7l-nixos-23.05/nixos/lib/lists.nix:138:13:

          137|   */
          138|   flatten = x:
             |             ^
          139|     if isList x

       … while evaluating call site

       at /nix/store/cmwzh97fnsj3g2gal9l9z1k9nn1dqg7l-nixos-23.05/nixos/lib/lists.nix:140:10:

          139|     if isList x
          140|     then concatMap (y: flatten y) x
             |          ^
          141|     else [x];

       … while calling anonymous lambda

       at /nix/store/cmwzh97fnsj3g2gal9l9z1k9nn1dqg7l-nixos-23.05/nixos/lib/lists.nix:140:21:

          139|     if isList x
          140|     then concatMap (y: flatten y) x
             |                     ^
          141|     else [x];

       … while evaluating call site

       at /nix/store/cmwzh97fnsj3g2gal9l9z1k9nn1dqg7l-nixos-23.05/nixos/lib/lists.nix:140:24:

          139|     if isList x
          140|     then concatMap (y: flatten y) x
             |                        ^
          141|     else [x];

       … while calling 'flatten'

       at /nix/store/cmwzh97fnsj3g2gal9l9z1k9nn1dqg7l-nixos-23.05/nixos/lib/lists.nix:138:13:

          137|   */
          138|   flatten = x:
             |             ^
          139|     if isList x

       … while evaluating call site

       at /nix/store/cmwzh97fnsj3g2gal9l9z1k9nn1dqg7l-nixos-23.05/nixos/lib/lists.nix:140:10:

          139|     if isList x
          140|     then concatMap (y: flatten y) x
             |          ^
          141|     else [x];

       … while calling anonymous lambda

       at /nix/store/cmwzh97fnsj3g2gal9l9z1k9nn1dqg7l-nixos-23.05/nixos/lib/lists.nix:140:21:

          139|     if isList x
          140|     then concatMap (y: flatten y) x
             |                     ^
          141|     else [x];

       … while evaluating call site

       at /nix/store/cmwzh97fnsj3g2gal9l9z1k9nn1dqg7l-nixos-23.05/nixos/lib/lists.nix:140:24:

          139|     if isList x
          140|     then concatMap (y: flatten y) x
             |                        ^
          141|     else [x];

       … while calling 'flatten'

       at /nix/store/cmwzh97fnsj3g2gal9l9z1k9nn1dqg7l-nixos-23.05/nixos/lib/lists.nix:138:13:

          137|   */
          138|   flatten = x:
             |             ^
          139|     if isList x

       … while evaluating call site

       at /nix/store/cmwzh97fnsj3g2gal9l9z1k9nn1dqg7l-nixos-23.05/nixos/lib/lists.nix:140:10:

          139|     if isList x
          140|     then concatMap (y: flatten y) x
             |          ^
          141|     else [x];

       … while calling anonymous lambda

       at /nix/store/cmwzh97fnsj3g2gal9l9z1k9nn1dqg7l-nixos-23.05/nixos/lib/lists.nix:140:21:

          139|     if isList x
          140|     then concatMap (y: flatten y) x
             |                     ^
          141|     else [x];

       … while evaluating call site

       at /nix/store/cmwzh97fnsj3g2gal9l9z1k9nn1dqg7l-nixos-23.05/nixos/lib/lists.nix:140:24:

          139|     if isList x
          140|     then concatMap (y: flatten y) x
             |                        ^
          141|     else [x];

       … while calling 'flatten'

       at /nix/store/cmwzh97fnsj3g2gal9l9z1k9nn1dqg7l-nixos-23.05/nixos/lib/lists.nix:138:13:

          137|   */
          138|   flatten = x:
             |             ^
          139|     if isList x

       … while evaluating call site

       at /nix/store/bwcmwb5aniz4dxwax2wwknrjy9r7amla-source/parse.nix:142:35:

          141|               if !(isDisabled item) then
          142|                 [ packageManager (getName item) ] ++ map recurse item
             |                                   ^
          143|               else

       … while calling 'getName'

       at /nix/store/bwcmwb5aniz4dxwax2wwknrjy9r7amla-source/parse.nix:120:17:

          119|
          120|       getName = item:
             |                 ^
          121|         let

       error: list index 0 is out of bounds

       at /nix/store/bwcmwb5aniz4dxwax2wwknrjy9r7amla-source/parse.nix:123:28:

          122|           ensureValue = getKeywordValue ":ensure" item;
          123|           usePackageName = builtins.head (builtins.tail item);
             |                            ^
          124|         in

[margaretjoanmiller]

Oh here's my emacs configuration https://gist.github.com/0x4d6165/34d5d084f5f6cf3a9928b9e9589b07b7