Post B1I1BVRfGdIknis4tk by simon@fedi.simonwillison.net
 (DIR) More posts by simon@fedi.simonwillison.net
 (DIR) Post #B1I1BMth33NGI2uppw by simon@fedi.simonwillison.net
       2025-12-16T00:37:25Z
       
       0 likes, 0 repeats
       
       I ported a Python library implementing a full HTML5 parser to JavaScript using GPT-5.2 and Codex CLI in 4.5 hours, and decorated for Christmas and watched Knives Out while I was doing it https://simonwillison.net/2025/Dec/15/porting-justhtml/
       
 (DIR) Post #B1I1BOdSaNZrgHKtoO by i@declin.eu
       2025-12-16T00:43:07.893362Z
       
       0 likes, 0 repeats
       
       @simon finally back to the state of art transformers we're made for, translationit's crazy how viable these things got so quickly on the software side given everything, hopefully the consumer hardware catches up as well when the inevitable wave of ebay listings drop
       
 (DIR) Post #B1I1BVRfGdIknis4tk by simon@fedi.simonwillison.net
       2025-12-16T00:39:50Z
       
       0 likes, 0 repeats
       
       I'm sharing this because it's quite a stark demonstration of what's possible using the latest frontier LLMs at the tail end of 2025Is it a GOOD idea to churn out a 9,000 line direct port while watching Daniel Craig chew on the scenery? That's a whole other set of questions!