Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Cash flows from operating activities
Net loss	$ (32,672)	$ (6,784)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation	113	13
Loss on disposal of assets	3	0
Stock-based compensation	6,910	72
Noncash interest – related parties	0	206
Amortization (accretion) of premiums/discounts on investments, net	(172)	0
Increase in fair value of convertible promissory notes – related parties	0	1,735
Changes in operating assets and liabilities:
Accounts receivable	8,000	(8,000)
Prepaid expenses and other current assets	(1,805)	(249)
Other long-term assets	(392)	0
Accounts payable	2,139	14
Accrued expenses (includes related party amounts of $(512) and $442, respectively)	3,028	624
Deferred revenue	(2,137)	8,000
Operating lease right-of-use assets and liabilities, net	9	0
Net cash used in operating activities	(16,976)	(4,369)
Cash flows from investing activities
Purchases of property and equipment	(1,482)	0
Purchases of short-term investments	(473,626)	0
Maturities of short-term investments	134,145	0
Net cash used in investing activities	(340,963)	0
Cash flows from financing activities
Proceeds from issuance of convertible promissory notes	0	2,500
Proceeds from exercise of vested and unvested common stock options and employee stock purchase plan	1,810	70
Proceeds from initial public offering, net of issuance costs	204,167	0
Net cash provided by financing activities	386,524	11,524
Net increase in cash, cash equivalents and restricted cash	28,585	7,155
Cash, cash equivalents and restricted cash - beginning of year	7,813	658
Cash, cash equivalents and restricted cash - end of year	36,398	7,813
Supplemental disclosure of noncash investing and financing activities
Conversion of convertible preferred stock in connection with initial public offering	202,171	0
Conversion of convertible promissory notes and accrued interest into shares of convertible preferred stock	0	8,674
Unpaid fixed asset additions	38	147
Vesting of restricted common stock	475	2
Unrealized gain (loss) on short-term investments	(270)	0
Operating lease liabilities arising from right-of-use assets	256	0
Series Seed 2 Convertible Preferred Stock [Member]
Cash flows from financing activities
Proceeds from issuance of convertible preferred stock, net of issuance costs	0	8,954
Series A Convertible Preferred Stock [Member]
Cash flows from financing activities
Proceeds from issuance of convertible preferred stock, net of issuance costs	55,722	0
Series B Convertible Preferred Stock [Member]
Cash flows from financing activities
Proceeds from issuance of convertible preferred stock, net of issuance costs	$ 124,825	$ 0