Company: SLMT
Filing Date: 2025-11-20
Form Type: 6-K
Source: 0001213900-25-113192
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Company: Brera Holdings PLC
Filing Date: 2025-11-20
Form: 6-K
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<div align='center'>UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13a-16 OR 15d-16 OF THE

SECURITIES EXCHANGE ACT OF 1934

For the month of November 2025

Commission File Number 001-41606

BRERA HOLDINGS PLC

(Translation of registrant’s name into English)

Connaught House, 5th Floor

One Burlington Road

Dublin 4

D04 C5Y6

Ireland

(Address of principal executive office)</div>

Indicate by check mark whether the registrant files or will file annual
reports under cover of Form 20-F or Form 40-F:

<div align='center'>Form 20-F ☒
Form 40-F ☐

INFORMATION CONTAINED IN THIS FORM 6-K REPORT</div>

Press Release

On November 20, 2025, Brera Holdings PLC, operating
under the name Solmate Infrastructure (the “Company”) (NASDAQ: SLMT), a Solana-based crypto infrastructure company, issued
a press release announcing the Company will serve as an official Strategic Partner of Abu Dhabi Finance Week, taking place 8-11 December
2025. A copy of the press release is attached to this Form 6-K as Exhibit 99.1 and is incorporated herein by reference.

PIPE Investor Notice

In connection with the filing of the resale registration
statement on Form F-3ASR (Registration Number 333-291657) by the Company, the Company is concurrently sending notice to the PIPE Investors
(as defined below) as required by the Registration Rights Agreement, dated as of September 18, 2025, by and between the Company and certain
accredited investors (the “PIPE Investors”). The notice includes certain business updates. A copy of the notice is attached
to this Form 6-K as Exhibit 99.2 and is incorporated herein by reference.

Forward-Looking Statements

This Form 6-K includes forward-looking statements
within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as
amended. These forward-looking statements generally can be identified by the use of words such as "anticipate," "expect,"
"plan," "could," "