In reply to @serowy:matrix.org
heho, im packaging a nodejs cli for nixpkgs currently. The package gets build but when running it, ill get spawn node ENOENT because the syscall is just spawn node without the correct nixpkgs path. Is there an elegant way to solve this?

In reply to @adis:blad.is
And faster isn't the only concern.
Bytes transferred matters.

 matrix-appservice-irc[895]: <--- Last few GCs --->
 matrix-appservice-irc[895]: [895:0x3cae3c0] 102505230 ms: Mark-Compact (reduce) 1977.4 (2086.4) -> 1975.6 (2086.4) MB, 3626.86 / 0.00 ms  (average mu = 0.118, current mu = 0.012) allocation failure; GC in old space requested
 matrix-appservice-irc[895]: [895:0x3cae3c0] 102510465 ms: Mark-Compact (reduce) 1975.6 (2086.4) -> 1975.6 (2084.6) MB, 5234.60 / 0.00 ms  (average mu = 0.052, current mu = 0.000) allocation failure; GC in old space requested
 matrix-appservice-irc[895]: <--- JS stacktrace --->
 matrix-appservice-irc[895]: FATAL ERROR: Ineffective mark-compacts near heap limit Allocation failed - JavaScript heap out of memory
 matrix-appservice-irc[895]:  1: 0xbd82d8 node::Abort() [/nix/store/dp9wv3bsiz89fmysx2inq9rbn4jidgbp-nodejs-slim-20.10.0/bin/node]
 matrix-appservice-irc[895]:  2: 0xa9f27c  [/nix/store/dp9wv3bsiz89fmysx2inq9rbn4jidgbp-nodejs-slim-20.10.0/bin/node]
 matrix-appservice-irc[895]:  3: 0xdf67b0 v8::Utils::ReportOOMFailure(v8::internal::Isolate*, char const*, v8::OOMDetails const&) [/nix/store/dp9wv3bsiz89fmysx2inq9rbn4jidgbp-nodejs-slim-20.10.0/bin/node]
 matrix-appservice-irc[895]:  4: 0xdf6b84 v8::internal::V8::FatalProcessOutOfMemory(v8::internal::Isolate*, char const*, v8::OOMDetails const&) [/nix/store/dp9wv3bsiz89fmysx2inq9rbn4jidgbp-nodejs-slim-20.10.0/bin/node]
 matrix-appservice-irc[895]:  5: 0x1012437  [/nix/store/dp9wv3bsiz89fmysx2inq9rbn4jidgbp-nodejs-slim-20.10.0/bin/node]
 matrix-appservice-irc[895]:  6: 0x10124bb  [/nix/store/dp9wv3bsiz89fmysx2inq9rbn4jidgbp-nodejs-slim-20.10.0/bin/node]
 matrix-appservice-irc[895]:  7: 0x102827d v8::internal::Heap::PerformGarbageCollection(v8::internal::GarbageCollector, v8::internal::GarbageCollectionReason, char const*) [/nix/store/dp9wv3bsiz89fmysx2inq9rbn4jidgbp-nodejs-slim-20.10.0/bin/node]
 matrix-appservice-irc[895]:  8: 0x1028d70 v8::internal::Heap::CollectGarbage(v8::internal::AllocationSpace, v8::internal::GarbageCollectionReason, v8::GCCallbackFlags) [/nix/store/dp9wv3bsiz89fmysx2inq9rbn4jidgbp-nodejs-slim-20.10.0/bin/node]
 matrix-appservice-irc[895]:  9: 0x1003e22 v8::internal::HeapAllocator::AllocateRawWithLightRetrySlowPath(int, v8::internal::AllocationType, v8::internal::AllocationOrigin, v8::internal::AllocationAlignment) [/nix/store/dp9wv3bsiz89fmysx2inq9rbn4jidgbp-nodejs-slim-20.10.0/bin/node]
 matrix-appservice-irc[895]: 10: 0x1004f84 v8::internal::HeapAllocator::AllocateRawWithRetryOrFailSlowPath(int, v8::internal::AllocationType, v8::internal::AllocationOrigin, v8::internal::AllocationAlignment) [/nix/store/dp9wv3bsiz89fmysx2inq9rbn4jidgbp-nodejs-slim-20.10.0/bin/node]
 matrix-appservice-irc[895]: 11: 0xfe4094 v8::internal::Factory::AllocateRaw(int, v8::internal::AllocationType, v8::internal::AllocationAlignment) [/nix/store/dp9wv3bsiz89fmysx2inq9rbn4jidgbp-nodejs-slim-20.10.0/bin/node]
 matrix-appservice-irc[895]: 12: 0xfd42fc v8::internal::FactoryBase<v8::internal::Factory>::NewFixedArrayWithMap(v8::internal::Handle<v8::internal::Map>, int, v8::internal::AllocationType) [/nix/store/dp9wv3bsiz89fmysx2inq9rbn4jidgbp-nodejs-slim-20.10.0/bin/node]
 matrix-appservice-irc[895]: 13: 0x12f5e1d v8::internal::OrderedHashTable<v8::internal::OrderedHashMap, 2>::Allocate(v8::internal::Isolate*, int, v8::internal::AllocationType) [/nix/store/dp9wv3bsiz89fmysx2inq9rbn4jidgbp-nodejs-slim-20.10.0/bin/node]
 matrix-appservice-irc[895]: 14: 0x12f5ec0 v8::internal::OrderedHashTable<v8::internal::OrderedHashMap, 2>::Rehash(v8::internal::Isolate*, v8::internal::Handle<v8::internal::OrderedHashMap>, int) [/nix/store/dp9wv3bsiz89fmysx2inq9rbn4jidgbp-nodejs-slim-20.10.0/bin/node]
 matrix-appservice-irc[895]: 15: 0x141d3b2 v8::internal::Runtime_MapGrow(int, unsigned long*, v8::internal::Isolate*) [/nix/store/dp9wv3bsiz89fmysx2inq9rbn4jidgbp-nodejs-slim-20.10.0/bin/node]
 matrix-appservice-irc[895]: 16: 0x1847ef6  [/nix/store/dp9wv3bsiz89fmysx2inq9rbn4jidgbp-nodejs-slim-20.10.0/bin/node]
 systemd[1]: matrix-appservice-irc.service: Main process exited, code=dumped, status=6/ABRT
 systemd[1]: matrix-appservice-irc.service: Failed with result 'core-dump'.

        nodejs = nodejs_20;
        appBuild = buildNpmPackage {
          src = ./.;
          npmBuild = "npm run build";
          npmPackFlags = [ "--ignore-scripts" ];
          pname = "parkfuchs";
          version = "1.6.5";
          npmDepsHash = "sha256-L4440lAbgc0U06KlzIqcnyTc5lnrH678apbraK+6mQ8=";
        };```