1. Add a field for the SSH public key to the Users table:

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ALTER TABLE Users ADD COLUMN SSHPubKey VARCHAR(4096) NULL DEFAULT NULL;
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2. Create a new user and set up a patched version of the sshd as
described in INSTALL.

3. Create a directory for the package base Git repositories and run
init-repos.py to initialize them.

4. Reset the packager field of all package bases:

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UPDATE PackageBases SET PackagerUID = NULL;
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5. (optional) Setup cgit to browse the Git repositories via HTTP.