How to Receive Email at Home Through a VPS Gateway
A complete Postfix, Dovecot, Rspamd, HAProxy, and reverse-SSH setup for receiving Internet email on a home server without router access.
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Infrastructure
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One Mattermost Bridge, Two Hot-Swappable Agents
How I separated Codex and Pi from a growing Mattermost bridge, removed duplicated agent plumbing, and made each runtime replaceable without stopping routines.
How to Benchmark AuthOS in a 1 vCPU, 1 GiB VM
Build a constrained KVM guest, run the AuthOS SQLite workload from the host, collect comparable results, and select a load for a longer test.
Replacing a VPS Reverse SSH Tunnel Without Losing Rollback
How I traced slow self-hosted services to a reverse SSH path, moved public traffic to Cloudflare Tunnel one hostname at a time, and kept a fallback route.
From PP-OCRv6 Text to Kenyan ID JSON
A measured walkthrough of the modes, schema, synthetic fixture, and small understanding model I put around PP-OCRv6 to extract Kenyan ID fields locally.
Growing an Ubuntu VM Disk Through LUKS, LVM, and ext4
How I expanded an encrypted Ubuntu VM from its virtual disk through the partition, dm-crypt mapping, LVM physical and logical volumes, and ext4 filesystem.
Resetting Infrastructure Tests with Multipass Snapshots
How I use local Ubuntu VMs and a saved baseline to repeat deployment tests without carrying failed state into the next run.
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