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📝 WalkthroughWalkthroughAdded explicit flake outputs and formatter export; replaced Changes
Sequence Diagram(s)sequenceDiagram
participant Client
participant Firewall
participant DHCPv6macd as "dhcpv6macd"
participant ArtifactServer as "TFTP/HTTP/HTTPS"
Note over Client,ArtifactServer: Boot-time interactions using configured listen addresses/ports
Client->>Firewall: Packet to dhcpv6ListenPort
Firewall->>DHCPv6macd: Allow/forward to configured port
DHCPv6macd->>Client: DHCPv6 reply (assign address from baseAddress)
Client->>ArtifactServer: Fetch boot artifacts from tftp/http/https listen addresses
ArtifactServer->>Client: Serve boot artifacts
Estimated code review effort🎯 3 (Moderate) | ⏱️ ~20 minutes Poem
🚥 Pre-merge checks | ✅ 2 | ❌ 1❌ Failed checks (1 inconclusive)
✅ Passed checks (2 passed)
✏️ Tip: You can configure your own custom pre-merge checks in the settings. ✨ Finishing touches🧪 Generate unit tests (beta)
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Actionable comments posted: 1
🤖 Fix all issues with AI agents
In `@flake.nix`:
- Around line 214-228: The firewall rules no longer match the new default listen
ports: update the firewall configuration so it opens TCP 80 and 443 by default
(or derives ports from cfg.httpListenAddress and cfg.httpsListenAddress) and
ensure the DHCPv6 port uses cfg.dhcpv6ListenPort instead of the hardcoded
547/6315; specifically modify the rules that currently open TCP 547 and 6315 to
reference cfg.dhcpv6ListenPort and add rules for port 80 and 443 (or parse the
ports from cfg.httpListenAddress/cfg.httpsListenAddress) so the ExecStart
listeners and firewall stay in sync.
🧹 Nitpick comments (1)
flake.nix (1)
122-148: Clarify listen address format (host:port / IPv6 brackets).
The new options don’t describe the expected address format; without this, IPv6 values can be mis-specified. Consider adding brief examples (e.g.,":80","0.0.0.0:80","[::]:80").✏️ Suggested doc tweak
tftpListenAddress = lib.mkOption { type = lib.types.str; default = ":69"; description = lib.mdDoc '' - The address to listen on for TFTP requests. + The address to listen on for TFTP requests (format: "IP:port" or ":port"; IPv6 must be bracketed like "[::]:69"). ''; }; ... httpListenAddress = lib.mkOption { type = lib.types.str; default = ":80"; description = lib.mdDoc '' - The address to listen on for HTTP requests. + The address to listen on for HTTP requests (format: "IP:port" or ":port"; IPv6 must be bracketed like "[::]:80"). ''; }; ... httpsListenAddress = lib.mkOption { type = lib.types.str; default = ":443"; description = lib.mdDoc '' - The address to listen on for HTTPS requests. + The address to listen on for HTTPS requests (format: "IP:port" or ":port"; IPv6 must be bracketed like "[::]:443"). ''; };
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🤖 Fix all issues with AI agents
In `@flake.nix`:
- Line 205: Formatting error: the array literal assigned to allowedTCPPorts has
no space before the closing bracket; update the array for the symbol
allowedTCPPorts so it follows nixpkgs-fmt style by inserting a space before the
closing `]` (i.e., change `[ 547]` to include a space before the `]`) and re-run
formatting/CI.
colemickens
reviewed
Feb 4, 2026
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🤖 Fix all issues with AI agents
In `@flake.nix`:
- Around line 262-268: ExecStart is passing literal "null" for optional path
args (cfg.tlsCertFile, cfg.tlsKeyFile, cfg.netbootDirectory) because
lib.escapeShellArgs is given nullOr values; filter out nulls or only concatenate
flag/value pairs when the value != null so empty values become "" to the Go
binary. Update the ExecStart construction that calls lib.escapeShellArgs (and/or
the surrounding list) to use lib.filter (x: x != null) on the argument list or
wrap each flag/value pair with an if check (e.g., include "-tls-cert-file" and
cfg.tlsCertFile only when cfg.tlsCertFile != null) so no "null" string is passed
to the dhcpv6macd binary.
- Around line 137-178: The option descriptions currently wrap text with
lib.mdDoc (for options baseAddress, interface, tftpListenAddress,
httpListenAddress, httpsListenAddress, dhcpv6ListenPort); remove the
lib.mdDoc(...) wrapper and provide the description as a plain string/heredoc
(e.g. ''...'' or "..." directly) so descriptions are just string values, which
avoids the missing mdDoc attribute on newer NixOS versions.
Flake lock file updates:
• Updated input 'nixpkgs':
'https://api.flakehub.com/f/pinned/NixOS/nixpkgs/0.1.931542%2Brev-88d3861acdd3d2f0e361767018218e51810df8a1/019be60b-f6ea-74ec-ab74-e960f412a787/source.tar.gz' (2026-01-21)
→ 'https://api.flakehub.com/f/pinned/NixOS/nixpkgs/0.1.939624%2Brev-e6eae2ee2110f3d31110d5c222cd395303343b08/019c240d-29c9-709e-9b55-b0dc6858b20b/source.tar.gz' (2026-02-03)
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Actionable comments posted: 2
🤖 Fix all issues with AI agents
In `@flake.nix`:
- Line 353: The CI failure shows flake.nix is not formatted; run the Nix
formatter to fix the formatting of the expression that defines formatter (the
line using formatter = forAllSystems (system:
nixpkgs.legacyPackages.${system}.nixfmt)); run `nixfmt flake.nix` (or `nix
develop --command nixfmt flake.nix`) and commit the resulting changes so the
formatter declaration and surrounding file match nixfmt's output.
- Around line 266-271: The tlsCertFile entry is wrapped in an extra nested list
which causes lib.escapeShellArgs to produce malformed command-line arguments;
update the block that builds the "-tls-cert-file" argument (the lib.optionals
(cfg.tlsCertFile != null) [...] construct referencing cfg.tlsCertFile and
"-tls-cert-file") to match the structure used by the tlsKeyFile block so it
returns a flat [ "-tls-cert-file", cfg.tlsCertFile ] pair (no additional inner
list).
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🤖 Fix all issues with AI agents
In `@flake.nix`:
- Around line 145-150: The `interface` option is declared as nullOr str but
later used unguarded as cfg.interface in the firewall attribute path
(networking.firewall.interfaces."${cfg.interface}"), which will fail if null;
fix by either making the option required (change the lib.mkOption type to
lib.types.str for the interface option) or by guarding the firewall block with
lib.mkIf (cfg.interface != null) so the
networking.firewall.interfaces..."${cfg.interface}" stanza is only evaluated
when cfg.interface is non-null; update the declaration around the interface
lib.mkOption or wrap the firewall config accordingly to eliminate interpolation
of null.
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🤖 Fix all issues with AI agents
In `@flake.nix`:
- Around line 194-199: The netbootDirectory option (type nullOr lib.types.path)
is missing a default, making it effectively required; add a default = null;
inside the netbootDirectory lib.mkOption block (same pattern used by tlsCertFile
and tlsKeyFile) so the option is truly optional and consistent with the nullOr
type.
cole-h
approved these changes
Feb 4, 2026
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