git flakes currentSystem error

gistfile1.txt

building the system configuration...
error: attribute 'currentSystem' missing

       at /nix/store/mk4x3mhmgmzx0j0dda26ay19x22yxbyj-source/pkgs/top-level/impure.nix:18:43:

           17|   # (build, in GNU Autotools parlance) platform.
           18|   localSystem ? { system = args.system or builtins.currentSystem; }
             |                                           ^
           19|

       … while evaluating anonymous lambda

       at /nix/store/mk4x3mhmgmzx0j0dda26ay19x22yxbyj-source/pkgs/stdenv/default.nix:7:1:

            6|
            7| { # Args just for stdenvs' usage
             | ^
            8|   lib

       … from call site

       at /nix/store/mk4x3mhmgmzx0j0dda26ay19x22yxbyj-source/pkgs/top-level/default.nix:118:12:

          117|
          118|   stages = stdenvStages {
             |            ^
          119|     inherit lib localSystem crossSystem config overlays crossOverlays;

       … while evaluating 'reverseList'

       at /nix/store/mk4x3mhmgmzx0j0dda26ay19x22yxbyj-source/lib/lists.nix:393:17:

          392|   */
          393|   reverseList = xs:
             |                 ^
          394|     let l = length xs; in genList (n: elemAt xs (l - n - 1)) l;

       … from call site

       at /nix/store/mk4x3mhmgmzx0j0dda26ay19x22yxbyj-source/pkgs/stdenv/booter.nix:85:6:

           84|       // (stageFun prevStage))
           85|     (lib.lists.reverseList stageFuns);
             |      ^
           86|

       … while evaluating 'imap1'

       at /nix/store/mk4x3mhmgmzx0j0dda26ay19x22yxbyj-source/lib/lists.nix:116:14:

          115|   */
          116|   imap1 = f: list: genList (n: f (n + 1) (elemAt list n)) (length list);
             |              ^
          117|

       … from call site

       at /nix/store/mk4x3mhmgmzx0j0dda26ay19x22yxbyj-source/pkgs/stdenv/booter.nix:78:30:

           77|   # isn't already set.
           78|   withAllowCustomOverrides = lib.lists.imap1
             |                              ^
           79|     (index: stageFun: prevStage:

       … while evaluating 'go'

       at /nix/store/mk4x3mhmgmzx0j0dda26ay19x22yxbyj-source/pkgs/stdenv/booter.nix:63:18:

           62|       len = builtins.length list;
           63|       go = pred: n:
             |                  ^
           64|         if n == len

       … from call site

       at /nix/store/mk4x3mhmgmzx0j0dda26ay19x22yxbyj-source/pkgs/stdenv/booter.nix:72:13:

           71|       lapp = lnul cur;
           72|       cur = go lapp 0;
             |             ^
           73|     in cur;

       … while evaluating 'dfold'

       at /nix/store/mk4x3mhmgmzx0j0dda26ay19x22yxbyj-source/pkgs/stdenv/booter.nix:60:27:

           59|   */
           60|   dfold = op: lnul: rnul: list:
             |                           ^
           61|     let

       … from call site

       at /nix/store/mk4x3mhmgmzx0j0dda26ay19x22yxbyj-source/pkgs/stdenv/booter.nix:136:4:

          135|
          136| in dfold folder postStage (_: {}) withAllowCustomOverrides
             |    ^

       … while evaluating anonymous lambda

       at /nix/store/mk4x3mhmgmzx0j0dda26ay19x22yxbyj-source/pkgs/stdenv/booter.nix:42:1:

           41| # other words, this does a foldr not foldl.
           42| stageFuns: let
             | ^
           43|

       … from call site

       at /nix/store/mk4x3mhmgmzx0j0dda26ay19x22yxbyj-source/pkgs/top-level/default.nix:122:10:

          121|
          122|   pkgs = boot stages;
             |          ^
          123|

       … while evaluating anonymous lambda

       at /nix/store/mk4x3mhmgmzx0j0dda26ay19x22yxbyj-source/pkgs/top-level/default.nix:19:1:

           18|
           19| { # The system packages will be built on. See the manual for the
             | ^
           20|   # subtle division of labor between these two `*System`s and the three

       … from call site

       at /nix/store/mk4x3mhmgmzx0j0dda26ay19x22yxbyj-source/pkgs/top-level/impure.nix:83:1:

           82|
           83| import ./. (builtins.removeAttrs args [ "system" ] // {
             | ^
           84|   inherit config overlays localSystem;

       … while evaluating anonymous lambda

       at /nix/store/mk4x3mhmgmzx0j0dda26ay19x22yxbyj-source/pkgs/top-level/impure.nix:15:1:

           14|
           15| { # We put legacy `system` into `localSystem`, if `localSystem` was not passed.
             | ^
           16|   # If neither is passed, assume we are building packages on the current

       … from call site

       at /nix/store/apqjxw3dx7x8lh8gdibhcyc212sfrllx-source/configuration.nix:19:28:

           18|
           19|     boot.kernelPackages = (import (fetchTarball {
             |                            ^
           20|       url = "https://github.com/NixOS/nixpkgs/archive/f77036342e2b690c61c97202bf48f2ce13acc022.tar.gz";

       … while evaluating the attribute 'value'

       at /nix/store/9v2i11v8nnfczb3hcvhb195p0m2n5w92-source/lib/modules.nix:392:44:

          391|       defnsByName' = byName "config" (module: value:
          392|           [{ inherit (module) file; inherit value; }]
             |                                            ^
          393|         ) configs;

       … while evaluating 'dischargeProperties'

       at /nix/store/9v2i11v8nnfczb3hcvhb195p0m2n5w92-source/lib/modules.nix:609:25:

          608|   */
          609|   dischargeProperties = def:
             |                         ^
          610|     if def._type or "" == "merge" then

       … from call site

       at /nix/store/9v2i11v8nnfczb3hcvhb195p0m2n5w92-source/lib/modules.nix:538:137:

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

       … while evaluating definitions from `/nix/store/apqjxw3dx7x8lh8gdibhcyc212sfrllx-source/configuration.nix':

       … while evaluating anonymous lambda

       at /nix/store/9v2i11v8nnfczb3hcvhb195p0m2n5w92-source/lib/modules.nix:537:28:

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

       … from call site

       at /nix/store/9v2i11v8nnfczb3hcvhb195p0m2n5w92-source/lib/modules.nix:537:17:

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

       … while evaluating the attribute 'values'

       at /nix/store/9v2i11v8nnfczb3hcvhb195p0m2n5w92-source/lib/modules.nix:650:7:

          649|     in {
          650|       values = concatMap (def: if getPrio def == highestPrio then [(strip def)] else []) defs;
             |       ^
          651|       inherit highestPrio;

       … while evaluating the attribute 'values'

       at /nix/store/9v2i11v8nnfczb3hcvhb195p0m2n5w92-source/lib/modules.nix:551:9:

          550|       in {
          551|         values = defs''';
             |         ^
          552|         inherit (defs'') highestPrio;

       … while evaluating the attribute 'mergedValue'

       at /nix/store/9v2i11v8nnfczb3hcvhb195p0m2n5w92-source/lib/modules.nix:557:5:

          556|     # Type-check the remaining definitions, and merge them. Or throw if no definitions.
          557|     mergedValue =
             |     ^
          558|       if isDefined then

       … while evaluating 'apply'

       at /nix/store/9v2i11v8nnfczb3hcvhb195p0m2n5w92-source/nixos/modules/system/boot/kernel.nix:40:15:

           39|       type = types.unspecified // { merge = mergeEqualOption; };
           40|       apply = kernelPackages: kernelPackages.extend (self: super: {
             |               ^
           41|         kernel = super.kernel.override (originalArgs: {

       … from call site

       at /nix/store/9v2i11v8nnfczb3hcvhb195p0m2n5w92-source/lib/modules.nix:518:35:

          517|       # yield a value computed from the definitions
          518|       value = if opt ? apply then opt.apply res.mergedValue else res.mergedValue;
             |                                   ^
          519|

       … while evaluating the option `boot.kernelPackages':

       … while evaluating the attribute 'value'

       at /nix/store/9v2i11v8nnfczb3hcvhb195p0m2n5w92-source/lib/modules.nix:525:9:

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

       … while evaluating anonymous lambda

       at /nix/store/9v2i11v8nnfczb3hcvhb195p0m2n5w92-source/lib/modules.nix:140:72:

          139|           # For definitions that have an associated option
          140|           declaredConfig = mapAttrsRecursiveCond (v: ! isOption v) (_: v: v.value) options;
             |                                                                        ^
          141|

       … from call site

       at /nix/store/9v2i11v8nnfczb3hcvhb195p0m2n5w92-source/lib/attrsets.nix:301:20:

          300|               then recurse (path ++ [name]) value
          301|               else f (path ++ [name]) value;
             |                    ^
          302|         in mapAttrs g set;

       … while evaluating 'g'

       at /nix/store/9v2i11v8nnfczb3hcvhb195p0m2n5w92-source/lib/attrsets.nix:298:19:

          297|           g =
          298|             name: value:
             |                   ^
          299|             if isAttrs value && cond value

       … from call site

       … while evaluating the attribute 'content'

       at /nix/store/9v2i11v8nnfczb3hcvhb195p0m2n5w92-source/lib/modules.nix:693:14:

          692|     { _type = "if";
          693|       inherit condition content;
             |              ^
          694|     };

       … while evaluating 'dischargeProperties'

       at /nix/store/9v2i11v8nnfczb3hcvhb195p0m2n5w92-source/lib/modules.nix:609:25:

          608|   */
          609|   dischargeProperties = def:
             |                         ^
          610|     if def._type or "" == "merge" then

       … from call site

       at /nix/store/9v2i11v8nnfczb3hcvhb195p0m2n5w92-source/lib/modules.nix:615:11:

          614|         if def.condition then
          615|           dischargeProperties def.content
             |           ^
          616|         else

       … while evaluating 'dischargeProperties'

       at /nix/store/9v2i11v8nnfczb3hcvhb195p0m2n5w92-source/lib/modules.nix:609:25:

          608|   */
          609|   dischargeProperties = def:
             |                         ^
          610|     if def._type or "" == "merge" then

       … from call site

       at /nix/store/9v2i11v8nnfczb3hcvhb195p0m2n5w92-source/lib/modules.nix:538:137:

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

       … while evaluating definitions from `/nix/store/9v2i11v8nnfczb3hcvhb195p0m2n5w92-source/nixos/modules/system/boot/kernel.nix':

       … while evaluating anonymous lambda

       at /nix/store/9v2i11v8nnfczb3hcvhb195p0m2n5w92-source/lib/modules.nix:537:28:

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

       … from call site

       at /nix/store/9v2i11v8nnfczb3hcvhb195p0m2n5w92-source/lib/modules.nix:537:17:

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

       … while evaluating the attribute 'values'

       at /nix/store/9v2i11v8nnfczb3hcvhb195p0m2n5w92-source/lib/modules.nix:650:7:

          649|     in {
          650|       values = concatMap (def: if getPrio def == highestPrio then [(strip def)] else []) defs;
             |       ^
          651|       inherit highestPrio;

       … while evaluating the attribute 'values'

       at /nix/store/9v2i11v8nnfczb3hcvhb195p0m2n5w92-source/lib/modules.nix:551:9:

          550|       in {
          551|         values = defs''';
             |         ^
          552|         inherit (defs'') highestPrio;

       … while evaluating the attribute 'mergedValue'

       at /nix/store/9v2i11v8nnfczb3hcvhb195p0m2n5w92-source/lib/modules.nix:557:5:

          556|     # Type-check the remaining definitions, and merge them. Or throw if no definitions.
          557|     mergedValue =
             |     ^
          558|       if isDefined then

       … while evaluating the option `assertions':

       … while evaluating the attribute 'value'

       at /nix/store/9v2i11v8nnfczb3hcvhb195p0m2n5w92-source/lib/modules.nix:525:9:

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

       … while evaluating anonymous lambda

       at /nix/store/9v2i11v8nnfczb3hcvhb195p0m2n5w92-source/lib/modules.nix:140:72:

          139|           # For definitions that have an associated option
          140|           declaredConfig = mapAttrsRecursiveCond (v: ! isOption v) (_: v: v.value) options;
             |                                                                        ^
          141|

       … from call site

       at /nix/store/9v2i11v8nnfczb3hcvhb195p0m2n5w92-source/lib/attrsets.nix:301:20:

          300|               then recurse (path ++ [name]) value
          301|               else f (path ++ [name]) value;
             |                    ^
          302|         in mapAttrs g set;

       … while evaluating 'g'

       at /nix/store/9v2i11v8nnfczb3hcvhb195p0m2n5w92-source/lib/attrsets.nix:298:19:

          297|           g =
          298|             name: value:
             |                   ^
          299|             if isAttrs value && cond value

       … from call site

       … while evaluating 'fold''

       at /nix/store/9v2i11v8nnfczb3hcvhb195p0m2n5w92-source/lib/lists.nix:55:15:

           54|       len = length list;
           55|       fold' = n:
             |               ^
           56|         if n == len

       … from call site

       at /nix/store/9v2i11v8nnfczb3hcvhb195p0m2n5w92-source/lib/lists.nix:59:8:

           58|         else op (elemAt list n) (fold' (n + 1));
           59|     in fold' 0;
             |        ^
           60|

       … while evaluating 'foldr'

       at /nix/store/9v2i11v8nnfczb3hcvhb195p0m2n5w92-source/lib/lists.nix:52:20:

           51|   */
           52|   foldr = op: nul: list:
             |                    ^
           53|     let

       … from call site

       at /nix/store/9v2i11v8nnfczb3hcvhb195p0m2n5w92-source/nixos/modules/system/activation/top-level.nix:128:12:

          127|   # Replace runtime dependencies
          128|   system = fold ({ oldDependency, newDependency }: drv:
             |            ^
          129|       pkgs.replaceDependency { inherit oldDependency newDependency drv; }

https://discourse.nixos.org/t/nixos-config-in-flakes-crash-on-impure-nix/16178