cmd/sgblog/gopher.go | 20 ++------------------
 cmd/sgblog/http.go   | 20 +++-----------------
 cmd/sgblog/main.go   | 36 +++++++++++++++++++++++++++++++++---
 common.go            |  2 +-

diff --git a/cmd/sgblog/gopher.go b/cmd/sgblog/gopher.go
index f1707c2936e7a35ef556cd117ca51d4dcdc43b0e40a63674448835f702af2895..ef628791ed9bd637c572e84d1af8731b9a7ce610d3e8da9f080029ce312b6842 100644
--- a/cmd/sgblog/gopher.go
+++ b/cmd/sgblog/gopher.go
@@ -19,11 +19,9 @@ package main
 
 import (
 	"bufio"
-	"encoding/json"
 	"errors"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"log"
 	"net/url"
 	"os"
@@ -34,7 +32,6 @@
 	"github.com/go-git/go-git/v5"
 	"github.com/go-git/go-git/v5/plumbing"
 	"github.com/go-git/go-git/v5/plumbing/object"
-	"github.com/hjson/hjson-go"
 	"go.stargrave.org/sgblog"
 )
 
@@ -86,22 +83,9 @@ 	CommentsNum int
 	Topics      []string
 }
 
-func serveGopher() {
-	cfgPath := os.Args[2]
-	cfgRaw, err := ioutil.ReadFile(cfgPath)
+func serveGopher(cfgPath string) {
+	cfg, err := readCfg(cfgPath)
 	if err != nil {
-		log.Fatalln(err)
-	}
-	var cfgGeneral map[string]interface{}
-	if err = hjson.Unmarshal(cfgRaw, &cfgGeneral); err != nil {
-		log.Fatalln(err)
-	}
-	cfgRaw, err = json.Marshal(cfgGeneral)
-	if err != nil {
-		log.Fatalln(err)
-	}
-	var cfg *Cfg
-	if err = json.Unmarshal(cfgRaw, &cfg); err != nil {
 		log.Fatalln(err)
 	}
 	if cfg.GopherDomain == "" {
diff --git a/cmd/sgblog/http.go b/cmd/sgblog/http.go
index 6ada8e1bd1c2085ec51f5ea5673a19b4576458db98adea35cd245fdb8d952729..bbda7cba47a85dba97feb2918cb44a5abc7b051ff17a4205173ea2c41bcf9c34 100644
--- a/cmd/sgblog/http.go
+++ b/cmd/sgblog/http.go
@@ -22,14 +22,12 @@ 	"bytes"
 	"compress/gzip"
 	"crypto/sha1"
 	"encoding/hex"
-	"encoding/json"
 	"encoding/xml"
 	"errors"
 	"fmt"
 	"hash"
 	"html"
 	"io"
-	"io/ioutil"
 	"log"
 	"net/url"
 	"os"
@@ -40,7 +38,6 @@
 	"github.com/go-git/go-git/v5"
 	"github.com/go-git/go-git/v5/plumbing"
 	"github.com/go-git/go-git/v5/plumbing/object"
-	"github.com/hjson/hjson-go"
 	"go.stargrave.org/sgblog"
 	"go.stargrave.org/sgblog/cmd/sgblog/atom"
 	"golang.org/x/crypto/blake2b"
@@ -260,22 +257,11 @@ 	cfgPath := os.Getenv("SGBLOG_CFG")
 	if cfgPath == "" {
 		log.Fatalln("SGBLOG_CFG is not set")
 	}
-	cfgRaw, err := ioutil.ReadFile(cfgPath)
+	cfg, err := readCfg(cfgPath)
 	if err != nil {
-		makeErr(err)
+		log.Fatalln(err)
 	}
-	var cfgGeneral map[string]interface{}
-	if err = hjson.Unmarshal(cfgRaw, &cfgGeneral); err != nil {
-		makeErr(err)
-	}
-	cfgRaw, err = json.Marshal(cfgGeneral)
-	if err != nil {
-		makeErr(err)
-	}
-	var cfg *Cfg
-	if err = json.Unmarshal(cfgRaw, &cfg); err != nil {
-		makeErr(err)
-	}
+
 	pathInfo, exists := os.LookupEnv("PATH_INFO")
 	if !exists {
 		pathInfo = "/"
diff --git a/cmd/sgblog/main.go b/cmd/sgblog/main.go
index 0d6e79f2fbf72cf64c204bca43f48e1a598122e0e4ed5b8cb68a6ae1ddbf6b55..12bb4f1b5cb0d774fa4e147332c9b4ce57e1c44385070711c5de36cd50d1a926 100644
--- a/cmd/sgblog/main.go
+++ b/cmd/sgblog/main.go
@@ -21,9 +21,10 @@
 import (
 	"bytes"
 	"crypto/sha1"
+	"encoding/json"
+	"flag"
 	"fmt"
 	"io/ioutil"
-	"os"
 	"regexp"
 	"sort"
 	"strings"
@@ -32,6 +33,7 @@
 	"github.com/go-git/go-git/v5"
 	"github.com/go-git/go-git/v5/plumbing"
 	"github.com/go-git/go-git/v5/plumbing/object"
+	"github.com/hjson/hjson-go"
 	"go.cypherpunks.ru/recfile"
 )
 
@@ -195,9 +197,37 @@ 	}
 	return &headHash, nil
 }
 
+func readCfg(cfgPath string) (*Cfg, error) {
+	cfgRaw, err := ioutil.ReadFile(cfgPath)
+	if err != nil {
+		return nil, err
+	}
+	var cfgGeneral map[string]interface{}
+	if err = hjson.Unmarshal(cfgRaw, &cfgGeneral); err != nil {
+		return nil, err
+	}
+	cfgRaw, err = json.Marshal(cfgGeneral)
+	if err != nil {
+		return nil, err
+	}
+	var cfg *Cfg
+	if err = json.Unmarshal(cfgRaw, &cfg); err != nil {
+		return nil, err
+	}
+	return cfg, nil
+}
+
 func main() {
-	if len(os.Args) == 3 && os.Args[1] == "-gopher" {
-		serveGopher()
+	gopherCfgPath := flag.String("gopher", "", "Path to gopher-related configuration file")
+	flag.Usage = func() {
+		fmt.Fprintf(flag.CommandLine.Output(), `Usage of sgblog:
+	sgblog -- run CGI HTTP backend
+	sgblog -gopher /path/to/cfg.hjson -- run UCSPI/inetd Gopher backend
+`)
+	}
+	flag.Parse()
+	if *gopherCfgPath != "" {
+		serveGopher(*gopherCfgPath)
 	} else {
 		serveHTTP()
 	}
diff --git a/common.go b/common.go
index ab42dd7b09e6d68ad67805a0b8df6e295c9b2c347dc72d25c3e08322c9079716..bdc594d109258b173686231a8c7c288ac5fb924a4b958e33e9c849af3395a58d 100644
--- a/common.go
+++ b/common.go
@@ -2,6 +2,6 @@ // SGBlog -- Git-backed CGI/inetd blogging/phlogging engine
 package sgblog
 
 const (
-	Version = "0.16.0"
+	Version = "0.17.0"
 	WhenFmt = "2006-01-02 15:04:05Z07:00"
 )