AUGUST CAPITAL

POWER OF ATTORNEY


KNOW ALL MEN BY THESE PRESENTS, that each person listed on Schedule A attached
hereto (each a "Granting Entity," and collectively the "Granting Entities") and
each person listed on Schedule B attached hereto (each, a "Granting Equity
Holder" and collectively, the "Granting Equity Holders"), hereby constitutes and
appoints ABIGAIL HIPPS its true and lawful attorney-in-fact (the
"Attorney-in-Fact") to act for and on behalf of such person in its own capacity
and in its capacity as a manager, member, general partner or similar control
person ("Control Person") of any other Granting Entity to:

a.	 execute contracts, agreements, instruments, certificates and documents that
arise in the ordinary course of business on behalf of such person in its own
capacity and in its capacity as a Control Person in accordance with and subject
to the provisions of the relevant governing documents of such person and
applicable law, including, but not limited to, stock powers, stock purchase
agreements, voting agreements, co-sale agreements, investor rights agreements,
management rights agreements, proxies, ballots, indemnification agreements,
waivers, stockholder written consents or amendments or modifications to any of
the foregoing, and documents related to opening and maintaining bank and
brokerage accounts;

b.	execute, individually or jointly with any other reporting persons, any and
all reports, notices, communications and other documents (including, but not
limited to, reports or filings on Form ADV, Form D, Schedule 13D, Schedule 13G,
Form 13-F, Form 13H, Form 3, Form 4, Form 5 and any applicable  registration
statements) that such Granting Entity or Granting Equity Holder may be required
to file with any foreign or domestic regulatory authority, including, but not
limited to, the United States Securities and Exchange Commission pursuant to the
Securities Act of 1933, the Securities Exchange Act of 1934, the Investment
Company Act of 1940 or the Investment Advisers Act of 1940, each as amended and
with the implementing rules and regulations thereto (collectively, the
"Reports") with respect to such person's (i) status as an officer, member or
director of, or (ii) ownership of, or transactions in, securities of, any entity
whose securities are beneficially owned (directly or indirectly) by such person;

c.	do and perform any and all acts for and on behalf of such Granting Entity or
Granting Equity Holder that may be necessary or desirable to complete and
execute any such Reports and timely file such forms, reports, notices and
schedules with the United States Securities and Exchange Commission and any
stock exchange or other domestic or foreign authority; and

d.	take any other action of any type whatsoever in connection with the foregoing
which, in the opinion of such attorney-in-fact, may be of benefit to, in the
best interest of, or legally required by, such Granting Entity or Granting
Equity Holder, it being understood that the documents executed by such
attorney-in-fact on behalf of such person, pursuant to this Power of Attorney,
shall be in such form and shall contain such terms and conditions as such
attorney in-fact may approve in his discretion.

	Each Granting Entity and Granting Equity Holder hereby grants to such
attorney-in-fact full power and authority to do and perform all and every act
and thing whatsoever requisite, necessary, and proper to be done in the exercise
of any of the rights and powers herein granted, as fully to all intents and
purposes as such person might or could do if personally present, with full power
of revocation, hereby ratifying and confirming all that such attorney-in-fact,
or his substitute or substitutes, shall lawfully do or cause to be done by
virtue of this Power of Attorney and the rights and powers herein granted.  Each
Granting Entity and Granting Equity Holder acknowledges that no such attorney
in-fact, in serving in such capacity at the request of such person, is hereby
assuming, nor is any other Granting Entity or Granting Equity Holder hereby
assuming, any of such person's responsibilities to comply with Section 16 or
Section 13 of the Securities Exchange Act of 1934 or otherwise.

	One or more additional Granting Entities or Granting Equity Holders may become
a party to this Power of Attorney after the date hereof without the consent of
any of the other parties hereto by executing a counterpart to this Power of
Attorney.  Schedule A and Schedule B shall be amended from time to time by the
attorney-in-fact to reflect the addition or removal of any Granting Entity or
Granting Equity Holder.

	This Power of Attorney shall remain in full force and effect with respect to a
Granting Entity or a Granting Equity Holder until the sooner of (i) delivery by
such Granting Entity or Granting Equity Holder to the Attorney-in-Fact at his
last known business address of a written revocation, in whole or in part, of
this Power of Attorney, (ii) delivery by August Capital Master Management
Company, L.L.C. to the Attorney-in-Fact at his last known business address of a
written revocation, in whole or in part, of this Power of Attorney or (iii)
December 31, 2028.

	IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be
executed effective as of December 31, 2018.


GRANTING ENTITIES


	AUGUST CAPITAL MANAGEMENT V, L.L.C.

	By: /s/ David Hornik
	Name: David Hornik
	Title: Member


	AUGUST CAPITAL V, L.P.
	By: August Capital Management V, L.L.C., its general partner

	By: /s/ David Hornik
	Name: David Hornik
	Title: Member


	AUGUST CAPITAL V SPECIAL OPPORTUNITIES, L.P.
	By: August Capital Management V, L.L.C., its general partner

	By: /s/ David Hornik
	Name: David Hornik
	Title: Member


	AUGUST CAPITAL STRATEGIC PARTNERS V, L.P.
	By: August Capital Management V, L.L.C., its general partner

	By: /s/ David Hornik
	Name: David Hornik
	Title: Member


       AUGUST CAPITAL MANAGEMENT VI, L.L.C.

	By: /s/ David Hornik
	Name: David Hornik
	Title: Member


	AUGUST CAPITAL VI, L.P.
	By: August Capital Management VI, L.L.C., its general partner

	By: /s/ David Hornik
	Name: David Hornik
	Title: Member


       AUGUST CAPITAL VI SPECIAL OPPORTUNITIES, L.P.
	By: August Capital Management VI, L.L.C., its general partner

	By: /s/ David Hornik
	Name: David Hornik
	Title: Member


       AUGUST CAPITAL MANAGEMENT VII, L.L.C.

	By: /s/ David Hornik
	Name: David Hornik
	Title: Member


	AUGUST CAPITAL VII, L.P.
	By: August Capital Management VII, L.L.C., its general partner

	By: /s/ David Hornik
	Name: David Hornik
	Title: Member


	AUGUST CAPITAL STRATEGIC PARTNERS VII, L.P.
	By: August Capital Management VII, L.L.C., its general partner

	By: /s/ David Hornik
	Name: David Hornik
	Title: Member


	AUGUST CAPITAL MASTER MANAGEMENT COMPANY, L.L.C.

	By: /s/ David Hornik
	Name: David Hornik
	Title: Member



GRANTING EQUITY HOLDERS


        By: /s/ Howard Hartenbaum
            Howard Hartenbaum

        By: /s/ David Hornik
            David Hornik

        By: /s/ W. Eric Carlborg
            W. Eric Carlborg

        By: /s/ John B. Jones III
            John B. Jones III



SCHEDULE A

GRANTING ENTITIES

August Capital Management V, L.L.C.
August Capital Management VI, L.L.C.
August Capital Management VII, L.L.C.
August Capital Master Management Company, L.L.C.
August Capital V, L.P.
August Capital V Special Opportunities, L.P.
August Capital Strategic Partners V, L.P.
August Capital VI, L.P.
August Capital VI Special Opportunities, L.P.
August Capital VII, L.P.
August Capital Strategic Partners VII, L.P.



SCHEDULE B

GRANTING EQUITY HOLDERS

Howard Hartenbaum
David Hornik
W. Eric Carlborg
John B. Jones III