Unaudited Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 29, 2025	Mar. 30, 2024	Mar. 29, 2025	Mar. 30, 2024
Revenue:
Total revenue	$ 549,651	$ 393,332	$ 1,036,344	$ 753,275
Cost of revenue:
Total cost of revenue	441,823	363,112	848,477	658,999
Gross profit	107,828	30,220	187,867	94,276
Operating expenses:
Research and development expenses	61,540	46,462	105,133	88,606
Selling, general, and administrative expenses	78,347	48,652	139,421	95,663
Total operating expenses	139,887	95,114	244,554	184,269
Operating loss	(32,059)	(64,894)	(56,687)	(89,993)
Other income, net	11,714	9,812	19,536	16,011
Loss before income tax and equity method investment	(20,345)	(55,082)	(37,151)	(73,982)
Income tax benefit	1,397	252	1,248	80
Loss from equity method investment	(2,490)	0	(4,055)	0
Net loss	(21,438)	(54,830)	(39,958)	(73,902)
Net loss attributable to noncontrolling interests	(17,513)	(46,021)	(32,557)	(62,257)
Net loss attributable to common stockholders	$ (3,925)	$ (8,809)	$ (7,401)	$ (11,645)
Loss per share of Class A Common Stock:
Basic (in dollars per share)	$ (0.04)	$ (0.09)	$ (0.07)	$ (0.13)
Diluted (in dollars per share)	$ (0.04)	$ (0.09)	$ (0.07)	$ (0.13)
Weighted-average shares of Class A Common Stock outstanding:
Basic (in shares)	107,726,978	93,043,769	106,900,622	88,155,791
Diluted (in shares)	107,726,978	93,043,769	106,900,622	88,155,791
Systems
Revenue:
Total revenue	$ 513,372	$ 370,693	$ 977,431	$ 718,398
Cost of revenue:
Total cost of revenue	414,560	342,124	796,378	626,071
Software maintenance and support
Revenue:
Total revenue	6,685	2,566	12,210	4,735
Cost of revenue:
Total cost of revenue	2,095	1,936	3,979	3,662
Operation services
Revenue:
Total revenue	29,594	20,073	46,703	30,142
Cost of revenue:
Total cost of revenue	$ 25,168	$ 19,052	$ 48,120	$ 29,266