Exhibit A AGREEMENT REGARDING THE JOINT FILING OF SCHEDULE 13G

CUSIP No. 00000X000

Page 15 of 16

Exhibit A

AGREEMENT REGARDING THE JOINT FILING OF SCHEDULE 13G

The undersigned, being duly authorized thereunto, hereby execute this agreement as an exhibit to this Schedule 13G to evidence the agreement of the below-named parties, in accordance with the rules promulgated pursuant to the Securities Exchange Act of 1934, to file this Schedule jointly on behalf of each such party.

Date: February 14, 2023

[Signature Pages Follow]

CUSIP No. 00000X000

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IN WITNESS WHEREOF, the parties hereto have executed and delivered this Agreement as of the date first written above.

HATTERAS VENTURE PARTNERS VI, L.P.
By:		Hatteras Venture Advisors VI, LLC, its general partner
By:		/s/ Xxxx X. Xxxxx
		Manager
HATTERAS VENTURE ADVISORS VI, LLC
By:		/s/ Xxxx X. Xxxxx
		Manager

/s/ Xxxx X. Xxxxxxxx

Xxxx X. Xxxxxxxx

/s/ Xxxx X. Xxxxx

Xxxx X. Xxxxx

/s/ Xxxxxxx Xxxx

Xxxxxxx Xxxx

/s/ Xxxxxx Xxxxxx

Xxxxxx Xxxxxx

/s/ Xxxxxxx Xxxxxxx

Xxxxxxx Xxxxxxx

/s/ Xxxx X. Xxxx

Xxxx X. Xxxx

/s/ Xxxxxxx Xxxxxxx

Xxxxxxx Xxxxxxx