The Undercroft blog on open-source data integration: Xero, Gmail, Google Drive and HubSpot integration into Postgres, ETL vs ELT, raw data lakes, dbt and BI.https://blog.undercroft.lowbit.link/enhttps://blog.undercroft.lowbit.link/en/ai-agent-mcp-xero-gmail-drive/https://blog.undercroft.lowbit.link/en/ai-agent-mcp-xero-gmail-drive/An MCP server for business data helps AI agents work with Xero, Gmail and Drive. Understand permissions, reliable answers and when Undercroft fits.Tue, 29 Sep 2026 00:00:00 GMTMCPAIIntegrationOpen-sourcehttps://blog.undercroft.lowbit.link/en/data-integration-rest-api-yaml-connectors/https://blog.undercroft.lowbit.link/en/data-integration-rest-api-yaml-connectors/Understand data integration, how REST API connectors bring sources together, and when Undercroft's raw-data-first approach fits your reporting needs.Tue, 29 Sep 2026 00:00:00 GMTIntegrationREST APIELThttps://blog.undercroft.lowbit.link/en/etl-vs-elt/https://blog.undercroft.lowbit.link/en/etl-vs-elt/ETL vs ELT explained for business and engineering teams: compare the trade-offs, understand raw data retention, and see where Undercroft fits.Tue, 29 Sep 2026 00:00:00 GMTETLELTData integrationdbthttps://blog.undercroft.lowbit.link/en/gmail-integration-email-to-database/https://blog.undercroft.lowbit.link/en/gmail-integration-email-to-database/Explore Gmail integration for business reporting: preserve email and attachments, make their text searchable, and understand the benefits and trade-offs.Tue, 29 Sep 2026 00:00:00 GMTGmailIntegrationELThttps://blog.undercroft.lowbit.link/en/google-drive-integration-ocr-search/https://blog.undercroft.lowbit.link/en/google-drive-integration-ocr-search/Explore Google Drive integration for searchable documents: how OCR, preserved originals and optional classification help, and where the approach falls short.Tue, 29 Sep 2026 00:00:00 GMTGoogle DriveIntegrationOCRSearchhttps://blog.undercroft.lowbit.link/en/hubspot-integration-postgres/https://blog.undercroft.lowbit.link/en/hubspot-integration-postgres/A HubSpot integration can connect CRM and accounting for clearer reporting. Learn how Undercroft preserves source data and where your team's judgment matters.Tue, 29 Sep 2026 00:00:00 GMTHubSpotIntegrationReportingELThttps://blog.undercroft.lowbit.link/en/immutable-raw-data-lake/https://blog.undercroft.lowbit.link/en/immutable-raw-data-lake/A raw data lake preserves captured inputs so reports can be rebuilt. Learn how Undercroft approaches it, what you gain, and when it fits your team.Tue, 29 Sep 2026 00:00:00 GMTData lakeArchitectureELThttps://blog.undercroft.lowbit.link/en/open-source-data-platform-fivetran-airbyte-alternative/https://blog.undercroft.lowbit.link/en/open-source-data-platform-fivetran-airbyte-alternative/Is an open-source data platform right for your team? Explore how Undercroft connects raw data, models and reports, and what self-hosting asks of you.Tue, 29 Sep 2026 00:00:00 GMTOpen SourceELTData PlatformBIhttps://blog.undercroft.lowbit.link/en/xero-integration-postgres/https://blog.undercroft.lowbit.link/en/xero-integration-postgres/Explore a Xero integration that keeps raw data and lets your team define reports. Understand sync, data coverage and the trade-offs before choosing.Tue, 29 Sep 2026 00:00:00 GMTXeroIntegrationELTPostgreshttps://blog.undercroft.lowbit.link/en/xero-reporting-sql-dbt/https://blog.undercroft.lowbit.link/en/xero-reporting-sql-dbt/Make Xero reporting reflect your business with shared definitions, reusable dbt models and visible data gaps. Learn where Undercroft fits and what it requires.Tue, 29 Sep 2026 00:00:00 GMTXerodbtBI