Exhibit 99.1
Joint Filing Agreement
In accordance with Rule 13d-1(f) under the Securities and Exchange Act of 1934, the persons or entities named below agree to the joint filing on behalf of each of them of a statement on Schedule 13D (including amendments thereto) with respect to the shares of the Issuer and further agree that this joint filing agreement be included as an exhibit to this Schedule 13D. In evidence thereof, the undersigned, being duly authorized, have executed this Joint Filing Agreement as of October 15, 2021.
| DC RAINIER SPV LLC | |
| By: Dominion Capital LLC, its Manager | |
| By: Dominion Capital Holdings LLC, its Manager |
| By: /s/ Mikhail Gurevich | |
| Name: Mikhail Gurevich | |
| Title: Managing Member |
| By: /s/ Gennadiy Gurevich | |
| Name: Gennadiy Gurevich | |
| Title: Managing Member |
| DOMINION CAPITAL LLC | |
| By: Dominion Capital Holdings LLC, its Manager |
| By: /s/ Mikhail Gurevich | |
| Name: Mikhail Gurevich | |
| Title: Managing Member |
| By: /s/ Gennadiy Gurevich | |
| Name: Gennadiy Gurevich | |
| Title: Managing Member |
| DOMINION CAPITAL HOLDINGS LLC | |
| By: Dominion Capital Holdings LLC, its Manager |
| By: /s/ Mikhail Gurevich | |
| Name: Mikhail Gurevich | |
| Title: Managing Member |
| By: /s/ Gennadiy Gurevich | |
| Name: Gennadiy Gurevich | |
| Title: Managing Member |
| By: /s/ Mikhail Gurevich | |
| Name: Mikhail Gurevich |
| By: /s/ Gennadiy Gurevich | |
| Name: Gennadiy Gurevich |
