Each of these have related posts here on SN. Following is a subset of those:

Circular economy:

🎧 CD60: building a bitcoin circular economy with @Dooowta, @BrainHarrington, and @5antoshernandez | Citadel Dispatch #17002

🎥 0.00000001: Brian Harrington, BTC Circular Economy | Changing the Tide #10962

🎧 Growing bitcoins circular economy with @bdgbertdegroot | Bit Buy Bit Podcast #18214

OSHI:

@dooowta AMA: Kickstarting bitcoin circular economies worldwide, onboarding businesses, empowering local economies through ₿commerce. #16037

Oshi: Support Local, Earn Bitcoin! #8646 https://www.oshi.tech/

⚡ Lightning Unleashed: Oshi + Cash app #10780 https://www.thrillerbitcoin.com/oshipluscashappisnowunleashed

📺 Visa / MC Rekt #bitcoin | @Dooowta #18526 https://twitter.com/Dooowta/status/1511803066659622923

Breez:

Get Ready for a Fresh Breez: Multiple Apps, One Node, Optimal UX #18247 https://medium.com/breez-technology/get-ready-for-a-fresh-breez-multiple-apps-one-node-optimal-ux-519c4daf2536

IBEX:

Bitcoin Company IBEX Raises $4 Million, Eyes Expansion #18194 https://bitcoinmagazine.com/business/bitcoin-company-ibex-raises-4-million-eyes-expansion

BTCPay Server and Voltage Cloud:

BTCPay Server 1.4.0 - The Year of Change #8985 https://blog.btcpayserver.org/btcpay-server-1-4-0/

Voltage: Announcing Surge and our Next Generation Platform #18730 https://voltage.cloud/blog/voltage-announcements/announcing-surge-and-our-next-generation-platform/

CypherPunkPay:

CypherpunkPay - modern self-hosted software for accepting Bitcoin #8092 https://cypherpunkpay.org/