Javascript heap out of memory error

[Discordius]

Hey, I am getting the following error when trying to use HMR on my current bundle:

I20190803-12:24:37.784(-7)? <--- Last few GCs --->
I20190803-12:24:37.785(-7)? 
I20190803-12:24:37.785(-7)? [13338:0x103000000]   277033 ms: Mark-sweep 1108.0 (1434.0) -> 1107.3 (1435.5) MB, 735.8 / 0.1 ms  allocation failure GC in old space requested
I20190803-12:24:37.785(-7)? [13338:0x103000000]   277790 ms: Mark-sweep 1107.3 (1435.5) -> 1106.7 (1380.5) MB, 756.9 / 0.0 ms  last resort GC in old space requested
I20190803-12:24:37.785(-7)? [13338:0x103000000]   278537 ms: Mark-sweep 1106.7 (1380.5) -> 1106.7 (1362.0) MB, 747.0 / 0.0 ms  last resort GC in old space requested
I20190803-12:24:37.785(-7)? 
I20190803-12:24:37.786(-7)? 
I20190803-12:24:37.786(-7)? <--- JS stacktrace --->
I20190803-12:24:37.786(-7)? 
I20190803-12:24:37.786(-7)? ==== JS stack trace =========================================
I20190803-12:24:37.786(-7)? 
I20190803-12:24:37.786(-7)? Security context: 0x389b5caa58b9 <JSObject>
I20190803-12:24:37.787(-7)?     1: stringSlice(aka stringSlice) [buffer.js:560] [bytecode=0x389bfcccb989 offset=94](this=0x389b7ae822d1 <undefined>,buf=0x389bbb5bf7c9 <Uint8Array map = 0x389ba594bd11>,encoding=0x389b5cab5b89 <String[4]: utf8>,start=0,end=45220306)
I20190803-12:24:37.787(-7)?     2: toString [buffer.js:~609] [pc=0x16fea1251e2](this=0x389bbb5bf7c9 <Uint8Array map = 0x389ba594bd11>,encoding=0x389b5cab5b89 <String[4]: utf8>,start=0x389b7...
I20190803-12:24:37.787(-7)? 
W20190803-12:24:37.792(-7)? (STDERR) FATAL ERROR: CALL_AND_RETRY_LAST Allocation failed - JavaScript heap out of memory

I have experience with this error and usually fix it by setting the environment variables TOOL_NODE_FLAGS and NODE_OPTIONS, but it appears that neither of them gets properly passed through to the webpack node instance.

Is there any way to properly pass through those environment variables?