Crash with NullPointerException when attempting simultaneous key press config

[Deadairx]

I'm trying to implement from simultaneous key in my config. Is there something I'm doing wrong?

       {:des "qkey Window Management commands"
        :rules [:window-mode
                [[:o :l] :!TOright_arrow]]}

Exception in thread "main" java.lang.NullPointerException
        at karabiner_configurator.data$from_k_QMARK_.invokeStatic(data.clj:116)
        at karabiner_configurator.data$from_k_QMARK_.invoke(data.clj:113)
        at karabiner_configurator.froms$parse_keycode_or_pkey_vec$fn__981.invoke(froms.clj:96)
        at clojure.core$mapv$fn__8535.invoke(core.clj:6979)
        at clojure.lang.PersistentVector.reduce(PersistentVector.java:343)
        at clojure.core$reduce.invokeStatic(core.clj:6885)
        at clojure.core$mapv.invokeStatic(core.clj:6970)
        at clojure.core$mapv.invoke(core.clj:6970)
        at karabiner_configurator.froms$parse_keycode_or_pkey_vec.invokeStatic(froms.clj:96)
        at karabiner_configurator.froms$parse_keycode_or_pkey_vec.invoke(froms.clj:93)
        at karabiner_configurator.froms$parse_sim.invokeStatic(froms.clj:123)
        at karabiner_configurator.froms$parse_sim.invoke(froms.clj:119)
        at karabiner_configurator.froms$parse_from.invokeStatic(froms.clj:142)
        at karabiner_configurator.froms$parse_from.invoke(froms.clj:137)
        at karabiner_configurator.rules$parse_rule.invokeStatic(rules.clj:246)
        at karabiner_configurator.rules$parse_rule.invoke(rules.clj:228)
        at karabiner_configurator.rules$generate_one_rules$iter__1325__1329$fn__1330$fn__1331.invoke(rules.clj:432)
        at karabiner_configurator.rules$generate_one_rules$iter__1325__1329$fn__1330.invoke(rules.clj:415)
        at clojure.lang.LazySeq.sval(LazySeq.java:42)
        at clojure.lang.LazySeq.seq(LazySeq.java:51)
        at clojure.lang.RT.seq(RT.java:535)
        at clojure.core$seq__5467.invokeStatic(core.clj:139)
        at clojure.core$seq__5467.invoke(core.clj:139)
        at clojure.core$tree_seq$walk__6455$fn__6456.invoke(core.clj:4970)
        at clojure.lang.LazySeq.sval(LazySeq.java:42)
        at clojure.lang.LazySeq.seq(LazySeq.java:51)
        at clojure.lang.LazySeq.more(LazySeq.java:87)
        at clojure.lang.RT.more(RT.java:722)
        at clojure.core$rest__5453.invokeStatic(core.clj:73)
        at clojure.core$flatten.invokeStatic(core.clj:7204)
        at clojure.core$flatten.invoke(core.clj:7204)
        at karabiner_configurator.rules$generate_one_rules.invokeStatic(rules.clj:382)
        at karabiner_configurator.rules$generate_one_rules.invoke(rules.clj:376)
        at karabiner_configurator.rules$generate$fn__1362.invoke(rules.clj:445)
        at karabiner_configurator.rules$generate.invokeStatic(rules.clj:443)
        at karabiner_configurator.rules$generate.invoke(rules.clj:435)
        at karabiner_configurator.rules$parse_mains.invokeStatic(rules.clj:471)
        at karabiner_configurator.rules$parse_mains.invoke(rules.clj:465)
        at karabiner_configurator.core$parse_edn.invokeStatic(core.clj:93)
        at karabiner_configurator.core$parse_edn.invoke(core.clj:73)
        at karabiner_configurator.core$parse.invokeStatic(core.clj:150)
        at karabiner_configurator.core$parse.doInvoke(core.clj:142)
        at clojure.lang.RestFn.invoke(RestFn.java:439)
        at karabiner_configurator.core$_main.invokeStatic(core.clj:239)
        at karabiner_configurator.core$_main.doInvoke(core.clj:234)
        at clojure.lang.RestFn.invoke(RestFn.java:397)
        at clojure.lang.AFn.applyToHelper(AFn.java:152)
        at clojure.lang.RestFn.applyTo(RestFn.java:132)
        at karabiner_configurator.core.main(Unknown Source)

[yqrashawn]

This error is caused by using simultaneous keys in layer. It's not supported by the layer syntax right now. You can still archive that by adding multiple rules to manipulate the variable (something like https://github.com/yqrashawn/yqdotfiles/blob/62ce77f1e3f5949d5a5ab714a2086daa85ae64e9/modules/yqrashawn/home-manager/dotfiles/karabiner.edn#L175)